All sleep is full of dreams. Why should night or day make any difference?

The consciousness in the night almost always descends below the level of what one has gained by sadhana in the waking consciousness, unless there are special experiences of an uplifting character in the time of sleep or unless the yogic consciousness acquired is so strong in the physical itself as to counteract the pull of the subconscient inertia. In ordinary sleep the consciousness in the body is that of the subconscient physical, which is a diminished consciousness, not awake and alive like the rest of the being. The rest of the being stands back and part of its consciousness goes out into other planes and regions and has experiences which are recorded in dreams such as that you have related. You say you go to very bad places and have experiences like the one you narrate; but that is not a sign, necessarily, of anything wrong in you. It merely means that you go into the vital world, as everybody does, and the vital world is full of such places and such experiences. What you have to do is not so much to avoid at all going there, for it cannot be avoided altogether, but to go with full protection until you get mastery in these regions of supraphysical Nature. That is one reason why you should remember the Mother and open to the Force before sleeping; for the more you get that habit and do it successfully, the more the protection will be with you.

It is the waking mind which thinks and wills and controls more or less the life in the waking state. In the sleep that mind is not there and there is no control. It is not the thinking mind that sees dreams etc. and is conscious in a rather incoherent way in sleep. It is usually what is called the subconscient that comes up then. If the waking mind were active in the body, one would not be able to sleep.

You are mixing up different things altogether—that is why you cannot understand. I was simply explaining the difference between the ordinary waking consciousness and the ordinary sleep consciousness, as they work in men whether sadhaks or not sadhaks—and it has nothing to do with the true self or psychic being. Sleep and waking are determined not by the true self or psychic being, but by the mind's waking condition or activity or its cessation—when it ceases for a time, then it is the subconscious that is there on the surface and there is sleep.

That is a different matter—it is in the yogic consciousnes that one feels the seat of the subconscient below the feet, but the influence of the subconscious is not confined there—it is spread in the body. In the waking state it is overpowered by the conscious thinking mind and vital and conscious physical mind, but in the sleep state it comes on the surface.

It is the subconscient that is active in the ordinary dreams. But in the dreams in which one goes out into other planes of consciousness, mental, vital, subtle physical, it is part of the inner being, inner mental or vital or physical that is usually active.

These dreams are not all mere dreams, all have not a casual, incoherent or subconscious building. Many are records or transcripts of experiences on the vital plane into which one enters in sleep, some are scenes or events of the subtle physical plane. There one often undergoes happenings or carries on actions that resemble those of the physical life with the same surroundings and the same people, though usually there is in arrangement and feature some or a considerable difference. But it may also be a contact with other surroundings and with other people, not known in the physical life or not belonging at all to the physical world.

In the waking state you are conscious only of a certain limited field and action of your nature. In sleep you can become vividly aware of things beyond this field—a larger mental or vital nature behind the waking state or else a subtle physical or a subconscient nature which contains much that is there in you but not distinguishably active in the waking state. All these obscure tracts have to be cleared or else there can be no change of Prakriti. You should not allow yourself to be disturbed by the press of vital or subconscient dreams—for these two make up the larger part of dream-experience—but aspire to get rid of these things and of the activities they indicate, to be conscious and reject all but the divine Truth; the more you get that Truth and cling to it in the waking state, rejecting all else, the more all this inferior dream-stuff will get clear.

It is the condition of your consciousness I spoke of—the more conscious you become, the more you will be able to have dreams worth having

All dreams of this kind are very obviously formations such as one often meets on the vital, more rarely on the mental plane. Sometimes they are the formations of your own mind or vital; sometimes they are the formations of other minds with an exact or modified transcription in yours; sometimes formations come that are made by the non-human forces or beings of these other planes. These things are not true and need not become true in the physical world, but they may still have effects on the physical if they are framed with that purpose or that tendency and, if they are allowed, they may realise their events or their meaning—for they are most often symbolical or schematic—in the inner or the outer life. The proper course with them is simply to observe and understand and, if they are from a hostile source, reject or destroy them.

There are other dreams that have not the same character but are a representation or transcription of things that actually happen on other planes, in other worlds under other conditions than ours. There are, again, some dreams that are purely symbolic and some that indicate existing movements and propensities in us, whether familiar or undetected by the waking mind, or exploit old memories or else raise up things either passively stored or still active in the subconscient, a mass of various stuff which has to be changed or got rid of as one rises into a higher consciousness. If one learns how to interpret, one can get from dreams much knowledge of the secrets of our nature and of other-nature.

These figures and intimations in dream may be due to three different causes—

This is an instance of a dream of exact physical prevision. The power to have such dreams is comparatively rare, for ordinarily such previsions come in inner vision but not in sleep. In dreams vital or mental formations often take shape which sometimes fulfil themselves in essence, but not with this accuracy of detail.

It is only a particular class of dreams that do that [indicate the exact past and the future]. Most coherent dreams are either symbolic or indicate things that take place in the mental or vital planes rather than on the physical.

This indicates a power of conscious thought-formation. Thoughts have an effective power—usually by creating an atmosphere or tendencies—thus when one is ill, those around should not have thoughts of gloomy foreboding, grief or fear, for that works against cure. But the capacity of conscious thought-formation is a special power and uncommon. It can be acquired or come of itself by sadhana.

Dreams of this kind arise from the subconscient. It is one of the most embarrassing elements of yogic experience to find how obstinately the subconscient retains what has been settled and done with in the upper layers of the consciousness. But just for that reason these dreams are often a useful indication as they enable us to pursue things to their obscure roots in this underworld and excise them. No, it does not indicate that you are taking in any part of your consciousness your present pursuit of yoga as a stopgap, but merely that old vital tendencies and activities are still there in that mysterious and obscure subconscient limbo and that their ghosts can rise twittering to the surface when the conscious will is in abeyance. If the dream was trivial, it would seem to show that this ghost was not a strong demon like the militant Norwegian saga revenants but a phantom from an unsubstantial Hades.

It often happens that when something is thrown out of the waking consciousness it still occurs in dream. This recurrence is of two kinds. One is when the thing is gone, but the memory and impression of it remains in the subconscient and comes up in dream form in sleep. These subconscient dream-recurrences are of no importance; they are shadows rather than realities. The other is when dreams come in the vital to test or to show how far in some part of the inner being the old movement remains or is conquered. For in sleep the control of the waking consciousness and will is not there. If then even in spite of that one is conscious in sleep and either does not feel the old movement when the circumstances that formerly caused it are repeated in dream or else soon conquers and throws it out, then it must be understood that there too the victory is won. Your dream which seems to have corresponded with realities was a true experience of this kind; the old movement did come from habit, but at once you became conscious and rejected it. This is an encouraging sign and promises complete removal in a very short time.

Those dreams which are formed from subconscient impressions arranged at haphazard (subconscient mind, vital or physical) either have no significance or some meaning which is difficult to find and not very much worth knowing even if it is found. Other dreams are either simply happenings of the mental, vital or subtle physical worlds or else belong to the wider mental, vital or subtle physical planes and have a meaning which the figures of the dream are trying to communicate.

When one is in the physical consciousness, then the sleep is apt to be of the subconscious kind, often heavy and unrefreshing, the dreams also of the subconscient kind, incoherent and meaningless or if there is a meaning the dream symbols are so confused and obscure that it is not possible to follow it. It is by bringing the Mother's Light into the subconscient that this can be dispelled and the sleep becomes restful or luminous and conscious.

These experiences are normal when the inner consciousness is growing and becoming more and more the natural seat of the being—it is the spontaneous intuitive knowledge of this inner consciousness which is becoming prominent in place of the ordinary reliance of the external mind on sense data and external happenings. It is indeed the being as a whole that becomes conscious—the substance of consciousness that becomes aware of things, not an outer instrumental part.
In the sleep part of the consciousness goes out to other planes of being and sees and experiences things there. It is quite possible for the witness consciousness to follow these happenings which usually transmit themselves in a coherent transcription to the sleeping part of the consciousness—the latter receives them and they appear as clear significant dreams as opposed to the incoherent dreams of the subconscient. Or else the witness consciousness may feel itself there watching the happenings as well as here. This will probably develop after a while.

- Sri Aurobindo