Rene Descartes ,the Rationalist Philosopher’s observation on Sleep and Wakefulness is interesting.
He developed the system of doubt to arrive at certainty.
He starts disbelieving everything, the senses, the external world,scriptures,opinions and everything one can conceive of.
I recommend reading his Books for explaining his thoughts, though interesting, will not come under the topic we are discussing.
One sleeps and wakes up.
Descartes asks as to what determines the state of sleep and wakefulness.
In sleep one dreams and on waking up finds that it is not true.
What if what one perceives to be Sleep is wakefulness and what wakefulness is really a sleeping state?
In sleep we find everything to be true at the time of dreaming and only on waking up we say we have dreamt.
What if this is the other way round?
Sometimes I dream that I write and on waking up I find it is untrue and that I have been dreaming.
Now I am writing this post.
How can I be certain now that this activity is not being done while asleep?
This action of writing now may be a dream and I may wake up.
This is a problem not solved by Philosophy.
Hinduism describes four states of Being.
Jagrat, the waking state.
Swapna, the dreaming state,
Sushupti, the deep dreamless state and
Turiya, Pure Consciousness.
In the last state everything is Pure consciousness and the dreamer or The Experiencer, one who experiences and The Experienced are One.
One becomes the other.
And Consciousness is not limited by Space and Time.
Only when Space and Time are present, is the Consciousness becomes limited.
The Universal Consciousness one of the Attributes of Reality in unbounded.
Only when it is bound by Space and time, does it manifest as the world of names and Forms.
In essence the world and the beings, both animate and inanimate are One.
The differentiation occurs because of Space and Time.
This is called by Henri Bergson as Elan Vital.
Our Indian Philosophers call it Chit, one of the attributes of Brahman,Reality, the others being Sat(Being) and Ananda(Bliss)
Purusha Sukta describes the evolution of the Cosmos.
It describes the Universe in its evolution.
It talks about movement and stillness.
Motion and immobility are two things that are relative to each other.
Purusha is the Universal primordial Principle while Narayana is the specific applied principle in action.
He evolves into the world.
NaarayanamMahaegyam viswaathmaanam Prayaanam..
Naarayna paro Jyotiraathma naarayana para’
He is the mover but He is Immobile.
He evolves into the Universe , remains Himself.
He evolves Consciousness into beings, making them aware, not what they are but what Narayana wants them to be, by His Maya, Illusion.
In this sense he makes things ,people though Conscious yet not Really Conscious.
He poses to be asleep, but not really sleeping.
Narayana does not sleep.
His sleep is Yoga Nidra, a state of Yoga when one is awake yet asleep.
In our limited capacity all of us would have experienced this at some point of time.
And this sleep wakefulness is not bound by either Space or Time as Pure Consciousness can not be bound by Time or Space for Brahman;it is Its attribute.
Brahman, as Narayana represents this principle in His Ananthasayanam(Cosmic hibernation)
One may note that we call Anantha Narayana and not Anantha Vishnu for Narayana and Vishnu are different aspects of Reality Brahman.