What Dreams Might Reveal About the Source Code of Reality

Every night something extraordinary happens. The world disappears, and another one takes its place.

You may walk through a city that has never existed, speak to people who are dead, return to a house you somehow know despite never having visited it, fall in love, flee danger, fly above landscapes or spend what feels like hours living an entirely different life.

While it is happening, you usually accept the world around you as reality.

Then you wake up.

The room returns. The dream collapses. Within minutes, much of it may already be disappearing from memory.

Dreaming raises an uncomfortable question about consciousness: if the mind can generate a world convincing enough for us to temporarily mistake it for reality, how certain should we be that waking experience shows us reality exactly as it is?

Perhaps dreams are simply something the sleeping brain creates.

Perhaps they are also telling us something profound about how consciousness constructs experience.

And perhaps, occasionally, they reach further than that.

Dreams create realities

It is easy to underestimate what happens during a dream because we describe it afterwards as "just a dream".

From inside the experience, however, things can be very different.

You see landscapes. You hear voices. You recognise people. You experience fear, attraction, curiosity, grief and joy. You move through space and often carry an unquestioned sense of who you are and what is happening.

None of this requires the physical environment you appear to inhabit.

A bedroom can remain almost completely dark and still the dreamer may experience brilliant sunlight, mountains, buildings, strangers and entire sequences of events.

Whatever else dreams are, they demonstrate that experienced reality and external physical reality are not the same thing.

Consciousness receives or generates an experience and, for a while, accepts it as a world.

That is a remarkable clue.

The brain as a reality generator

Dream science gives us a strong biological account of part of this process.

Vivid dreaming is strongly associated with REM sleep, although dreams also occur during non-REM sleep. Brain activity during dreaming can produce visual experience, emotion, movement, narrative and a sense of self even while much ordinary sensory input from the outside world is reduced.

Neuroscientist Allan Hobson described REM dreaming as something like an internally generated virtual reality model.

The phrase is striking.

Your brain appears capable of generating a world model and placing your conscious experience inside it.

From a conventional neuroscientific perspective, this tells us something about how brains work.

From a Sacred Illusion perspective, it prompts another question:

How different is that from waking consciousness?

Waking reality is interpreted too

When you are awake, you do not experience the external world directly in some completely unfiltered form.

Light reaches your eyes. Pressure stimulates your skin. Sound waves move the structures of your ears. Your nervous system converts those signals into electrical and chemical activity.

The brain then constructs the colours, objects, voices, distances and relationships that make up conscious experience.

There really is an external world involved, as far as our ordinary models tell us.

But the world as you experience it is mediated through consciousness.

The colour red does not arrive in the skull as redness.

The feeling of depth is constructed.

Your sense of a continuous visual world is assembled despite the limitations of vision and attention.

Dreaming takes away much of the external input but keeps the world-building machinery running.

Perhaps dreams therefore show us something usually hidden in plain sight:

reality, as experienced, is always rendered somewhere.

Is consciousness the interface?

Simulation theory often imagines reality in technological language.

Code. Rendering. Information. Interfaces. Processing.

Those words are metaphors unless we discover an actual computational structure behind the universe, but dreaming makes one of them particularly useful.

Conscious experience behaves very much like an interface.

You do not normally perceive neurons firing, electromagnetic radiation entering the eye or the complex physical processes occurring within objects.

A dream supplies another interface without requiring the normal external environment.

That does not prove waking life is simulated.

It suggests that consciousness is already capable of presenting one form of reality while hiding almost everything occurring underneath it.

If waking existence has deeper architecture, perhaps consciousness works in much the same way.

What might "source code" mean?

When Sacred Illusion talks about the source code of reality, we do not necessarily mean literal computer code hidden behind the sky.

Source code is a metaphor for the deeper rules that generate experience.

What determines what appears? What creates continuity? Why do some patterns repeat? What relationship exists between attention and what becomes conscious? What creates the sense of self moving through a world?

Dreams let us observe a reality whose source is at least partly accessible to science: brain activity, memory, emotion, expectation and unconscious processing all help generate the experience.

Yet from inside the dream, those mechanisms are invisible.

You see the haunted house.

You do not see the neural activity producing it.

That is a useful thought experiment for waking reality.

If our universe has deeper generating processes, perhaps we would see their output rather than the processes themselves.

Dreams have rules until they do not

Dreams are strange because they combine structure and instability.

Gravity usually works until you begin flying.

People remain themselves until they become somebody else.

A house contains familiar rooms until one opens into a landscape that could not physically fit inside it.

You may travel somewhere without remembering the journey.

Time contracts and expands.

Characters appear to possess knowledge you do not consciously remember giving them.

The dream world can feel entirely coherent even as its rules change.

Most dreamers do not stop and challenge any of this.

They simply update their understanding of the world.

There is something revealing here about consciousness.

We are remarkably willing to accept the reality presented to us.

Lucid dreaming changes the relationship

A lucid dream occurs when you become aware, while still dreaming, that you are in a dream. The world does not necessarily disappear. Instead, your relationship with it changes. You can look around and think: This is being generated.

That moment is extraordinary because consciousness becomes aware of the constructed nature of the reality it is currently inhabiting.

Some lucid dreamers then experiment. They might attempt to fly or walk through walls for example.

Lucid dreaming has become a genuine field of neuroscientific research, not merely an occult or spiritual practice. And researchers have achieved something that sounds almost impossible.

Scientists have spoken to people inside dreams

In 2021, researchers from several laboratories demonstrated two-way communication with lucid dreamers while they remained asleep.

Participants in verified REM sleep heard questions from researchers, processed them and sometimes answered correctly using agreed eye movements or facial signals.

Some solved simple arithmetic while dreaming. Think about what that means experientially.

A person was inhabiting a dream world while information from another level of their environment entered that world. The dreamer interpreted the message, responded from within the dream and sent information back out.

No metaphysical explanation is required. But as a model for thinking about layered reality, it is extraordinary.

A dreamer can exist inside one apparent world while communication arrives from another level that the dream world does not ordinarily reveal.

If somebody wanted to invent a metaphor for simulation theory, it would be difficult to design a better experiment.

What does a dream character know?

Lucid dreamers frequently ask dream figures questions.

• Who are you?
• What do you represent?
• What should I know?
• Show me something I have forgotten.

Responses range from nonsense to astonishingly coherent statements that feel as though they came from somewhere beyond ordinary conscious thought.

Psychology has an obvious explanation. The dream character is generated by processes within your own mind, including memories and associations unavailable to immediate conscious awareness.

But consider how strange that already is.

A part of your own mind can appear to you as another person, look back at you and apparently tell you something you did not consciously know you knew.

The metaphysical interpretation goes further.

Some dreamers believe particular figures are independent consciousnesses, guides, deceased people or entities encountered in another realm.

Science cannot currently confirm that interpretation.

It cannot turn the subjective encounter into nothing either.

The experience remains.

Recurring places are especially strange

Some people repeatedly return to the same dream locations. They might go to a particular city, coastline, house or a landscape containing areas they gradually come to know.

These environments can appear to have geography, continuity and history across dreams. A conventional account sees the brain reusing remembered or invented spatial models.

That explanation is perfectly plausible. But recurring dream worlds are fascinating because they can feel less like repeated fantasies and more like places.

The dreamer sometimes discovers new areas while retaining knowledge of previously visited ones. If consciousness can build persistent internal geography, that alone tells us something remarkable about the architecture of mind.

If there is more happening, persistent dream worlds would be one of the obvious places to look.

Symbols and recurring code

Dreams also repeat symbols. Water, houses, stairs, doors, snakes, dead relatives, children, unknown rooms, trains, missed journeys, being late or being unable to speak can recur across different dreams and different periods of life.

The meaning is highly personal. A staircase may represent progress to one person, anxiety to another and absolutely nothing significant to someone else. That is why generic dream dictionaries are usually less useful than tracking your own recurring imagery and noticing when particular symbols appear.

The meaning varies between individuals, and simplistic dream dictionaries can be more distracting than useful.

Carl Jung proposed something much larger: that recurring symbols and archetypal structures may arise from a collective unconscious, a layer of psyche deeper than personal memory.

That idea remains influential in psychology, spirituality and mythology even though the stronger metaphysical interpretation is difficult to test.

Simulation language gives us another metaphor.

• Could recurring forms represent templates?
• Patterns used repeatedly by consciousness when constructing experience?

Or perhaps archetypes are not generated entirely by individuals at all.

Maybe consciousness taps into structures shared more broadly. We do not know.

Dreams keep producing the question.

Dream time is not clock time

Dreams also play unusual games with time. A complex sequence can feel as though it lasted hours even when the relevant period of sleep was much shorter.

Other dreams seem almost instantaneous.

You may possess memories within the dream of events that never occurred during the night's narrative at all. The dream simply loads them as part of the reality. You know you have lived in the house for years. You remember a relationship that has no waking equivalent. You understand the history of a place that came into existence only moments earlier.

Recent work on unusually immersive "epic" dreams has examined dreams so convincing and autobiographically weighted that people can remember them more like lived experience than ordinary fantasy.

Dreams show that subjective time, memory and world continuity can all be constructed together.

That should make us slightly less confident that our ordinary experience of time tells us everything about what time fundamentally is.

Precognitive dreams

Then we reach one of the oldest and most controversial claims about dreaming. People sometimes dream about something that later appears to happen like a death or a meeting. I've dreamt whole relationships!

But most apparent precognitive dreams are difficult to evaluate.

Humans dream constantly and forget most of those dreams. After something significant occurs, an older dream can suddenly appear similar in retrospect. Memory changes. Symbolic matches are flexible. Coincidences inevitably happen.

But there are harder cases. A dream is written down before the event. The details are unusually specific. The subsequent event occurs shortly afterwards.

There is no obvious ordinary route by which the information could have been known.

Those cases do not automatically prove precognition.

They do justify curiosity.

If consciousness can sometimes access information that does not fit neatly into ordinary chronological experience, dreams would be a plausible state in which that might occur because the filters and assumptions of waking consciousness are altered.

The best approach is not automatic belief or automatic rejection.

Record first.

Interpret later.

Shared and telepathic dreams

People also report dreams that appear connected with another person's experience.

Two people dream strikingly similar imagery.

Someone dreams about another person's crisis before learning that it happened.

A dream contains information about someone that the dreamer apparently did not consciously know.

Claims of dream telepathy have existed for centuries and have occasionally been investigated within psychology and parapsychology.

They remain controversial and have not produced the kind of robust, repeatable evidence required to establish telepathy as accepted science.

Yet reports continue.

One possibility is coincidence.

Another is unconscious knowledge combined with dream construction.

A more adventurous interpretation proposes that consciousness may not be entirely isolated inside individual brains.

If some aspect of consciousness is shared, non-local or embedded in a wider informational field, dreams might provide easier access to it because ordinary waking attention has quietened.

That remains a hypothesis.

It is also exactly the kind of hypothesis Sacred Illusion is interested in keeping alive.

Dreams of the dead

Dreams involving people who have died often feel qualitatively different from ordinary dreams. Some are obviously shaped by grief. Others are described as unusually clear, calm and coherent. The deceased person may appear healthy. Conversation can feel direct.

The dreamer sometimes wakes with an unusual certainty that they did not merely dream about somebody but somehow encountered them.

Researchers study these experiences primarily through grief, memory, attachment and dream psychology.

Those perspectives can explain why dreams of the dead are emotionally significant.

They do not necessarily settle the metaphysical question.

If consciousness survives physical death, dreams would be one possible state in which communication could occur.

We do not know whether that happens.

But reducing every such experience to meaningless neural noise seems equally premature.

Could dreams be other timelines?

Our Timeline Jumping 101 exploration raises another possibility.

Some dreams do not feel symbolic. They feel like another life. Sometimes you wake with an almost homesick feeling for people or places that do not exist in waking life.

The conventional explanation is that the brain generated a convincing alternative narrative.

That is likely to explain a great many such dreams.

The metaphysical possibility is more provocative.

If reality genuinely contains multiple histories or branches, could consciousness ever encounter another one while dreaming?

There is no scientific evidence demonstrating that it does.

But dreaming is one of the few states in which we routinely experience an apparently complete reality while disconnected from our normal waking identity.

If there were any permeability between possible realities, dreaming is an intriguing place to search for it.

Dreams and simulation theory

Now return to the simulation hypothesis. Suppose reality is generated. Perhaps digitally. Perhaps informationally. Perhaps through consciousness itself.

A being inside that reality would normally perceive only the rendered world, not the deeper system producing it.

Dreaming provides a miniature version of exactly that problem. The dreamer inhabits a generated world. The world contains objects, characters, apparent history and physical rules.

The source generating it remains invisible. Usually the dreamer does not even realise another level exists. Then lucidity appears.

The dreamer becomes aware that the environment is not the fundamental reality they assumed it was.

That is why dreaming has such power as a metaphor for spiritual awakening.

You do not necessarily escape the dream.

You recognise its nature while you are still inside it.

Are we awake in the same way?

When you wake from a dream, you usually downgrade the world you have just left. Waking life feels more real because it is stable, shared with other people and governed by rules that remain consistent enough to be tested and revisited.

Dreams generally do not offer that same continuity, but this still does not prove that waking reality is the deepest possible layer of existence. It simply tells us that waking experience is more persistent, collective and predictable than dreaming.

Perhaps consciousness itself sits somewhere deeper than both waking and dreaming.

Mystical traditions have repeatedly compared ordinary life with dreaming because awakening, in those traditions, means recognising that what appeared final was actually partial.

Simulation theory has rediscovered the same structure in technological language.

Is the dreamer creating everything?

There is an even deeper philosophical puzzle. Inside a normal dream, you experience yourself as one character among many.Yet the dream world, the landscape and the other characters are apparently all being generated through the same mind.

The dream ego is therefore not the whole dreamer. It is a perspective within something larger. Apply that idea cautiously to waking life.

What if the individual self we experience is also a perspective rather than the whole of consciousness?

Idealist philosophies, mystical traditions and some contemporary theories of consciousness explore versions of this possibility.

Maybe individual minds arise inside a larger field of consciousness rather than consciousness arising separately inside billions of isolated brains. If so, dreaming might be showing us the structure in miniature.

One consciousness. Many characters. A convincing world. Each character apparently separate while arising within the same deeper process. We cannot assume waking reality works that way.

But once you have seen consciousness do it every night, the idea becomes harder to dismiss as inherently absurd.

How to investigate your own dreams

Dreams become far more useful when you stop relying on memory alone.

For a month, treat them as data.

1. Record immediately. Write or dictate whatever you remember before checking your phone or beginning the day. Include people, places, emotions, phrases, colours and unusual details.
2. Date everything. This becomes particularly useful if you later think a dream predicted or corresponded with an event.
3. Separate the dream from interpretation. First record what happened. Then add what you think it might mean. Keeping those layers separate prevents later interpretation changing the original memory.
4. Track recurring elements. Notice repeated locations, people, symbols, themes and emotional states. Your personal dream language is usually more revealing than a generic symbol dictionary.
5. Mark apparent correspondences. If something later resembles the dream, write down exactly what matched and what did not. Do not quietly improve the dream after the event.
6. Experiment with lucidity. If lucid dreaming interests you, begin with simple reality checks and dream recall rather than trying to control everything immediately.
7. Ask questions. Before sleep, write a question. Notice whether subsequent dreams seem to respond directly, symbolically or not at all.

The aim is not to prove your preferred theory.

It is to become a better observer of your own consciousness.

What should you look for?

The most interesting dreams are not necessarily the most dramatic. Often, the useful material is quieter: places that recur and seem to develop over time, people who behave with an unusual sense of autonomy, symbols that appear during particular stages of your life, or dreams in which you seem to possess a different identity, history or set of relationships.

It is also worth paying attention to information you do not remember consciously knowing, dreams recorded before unexpectedly similar events, or lucid moments when the dream environment appears to respond to questions in surprising ways. Occasionally, a dream can leave behind the peculiar feeling that you have returned from somewhere rather than merely woken from something.

None of these experiences proves another reality. What becomes more interesting is the pattern across many dreams, especially when the same places, symbols or kinds of experiences recur over time.

Perhaps dreams are a training ground

Another possibility is that dreams are not primarily messages at all. They may be part of the way the brain rehearses danger, social situations, memory and emotional experience, helping us maintain and refine our internal model of the world.

A spiritual interpretation can sit alongside that. Dreams may also train consciousness to move between different kinds of constructed experience, reminding us night after night how easily awareness can become immersed in a world and accept its rules as real.

Seen this way, the repeated movement between dreaming and waking becomes interesting in itself. We enter a world, believe in it, experience it fully and then wake into another one. Whatever dreams ultimately are, they regularly demonstrate how quickly consciousness can shift its allegiance from one reality to another.

So what do dreams reveal about reality?

At minimum, dreams reveal something extraordinary about consciousness: a world does not have to be physically present in front of us for us to experience it as real. The mind can generate space, time, characters, memory and identity, and consciousness can temporarily inhabit that construction without recognising it as constructed.

That does not prove waking life is a simulation. It does, however, give simulation theory a much richer context because it shows that experienced reality is already something consciousness can construct.

The larger questions remain open. Dreams may simply reveal the remarkable creative capacity of the brain, but they may also occasionally give us access to information, states of consciousness or forms of experience that we do not yet fully understand. Claims about precognition, shared dreams, encounters with the dead, alternative timelines or recurring symbolic structures are still unresolved rather than established.

Perhaps every one of those experiences will eventually receive a conventional neurological explanation. Perhaps some will not.

Dreaming remains one of the strangest things humans routinely do. Every night we enter a world that can feel completely real, and every morning we return to another world that we immediately treat as more fundamental.

What I'm interested in what happens when we stop assuming that either experience tells us the whole story.

Frequently asked questions

Why do dreams feel real?

During dreams, the brain generates sensory, emotional and spatial experiences that can be vivid enough to produce a convincing sense of reality. Areas involved in perception and emotion remain active even though ordinary external sensory input is reduced.

Do dreams only happen during REM sleep?

No. Vivid dreaming is strongly associated with REM sleep, but research shows that dream experiences can also occur during non-REM sleep.

What is lucid dreaming?

Lucid dreaming occurs when someone becomes aware that they are dreaming while the dream continues. Some lucid dreamers can deliberately influence the dream environment or communicate through predetermined eye movements.

Can scientists communicate with lucid dreamers?

Yes. Laboratory studies have demonstrated limited two-way communication with some people during verified REM lucid dreams. Dreamers have received questions and responded using eye movements or facial muscle signals.

Can dreams predict the future?

People frequently report precognitive dreams, but there is no accepted scientific evidence establishing that dreams reliably provide information from future events. Recording dreams before any apparent fulfilment provides a much stronger basis for investigating individual experiences.

Are shared dreams possible?

People report apparently shared or telepathic dreams, and such experiences have occasionally been studied. There is currently no robust scientific evidence establishing that two people literally occupy the same dream or exchange information telepathically during sleep.

Can dreams be parallel realities?

There is no scientific evidence showing that dreams provide access to parallel universes or timelines. Some dreams can nevertheless create extraordinarily detailed alternate lives, which makes the idea an enduring metaphysical possibility.

Why do I dream about people who have died?

Dreams of deceased people are common and can play an important role in grief and memory. Some people interpret particularly vivid encounters spiritually as visitation dreams, although science cannot currently establish whether any dream involves communication with a consciousness beyond the dreamer.

Could waking reality also be constructed?

Our waking experience is already constructed from sensory information processed by the brain. That does not mean the external world is imaginary. It does mean that the reality we consciously experience is a model rather than unfiltered access to everything that exists.

Continue exploring

Simulation Theory 101
Could the reality we experience be generated by something deeper, and what role might consciousness play inside it?

Timeline Jumping 101
Could dreams of other lives connect with the possibility of alternative realities and parallel versions of ourselves?

Can We Prove We're in a Simulation?
What would actual evidence of a hidden architecture behind reality look like?

Explore Dreams & Altered Experience →