There is a drowsy state, between sleeping and waking, when you dream more in five minutes with your eyes half open, and yourself half conscious of everything that is passing around you, than you would in five nights with your eyes fast closed, and your senses wrapt in perfect unconsciousness. At such time, a mortal knows just enough of what his mind is doing, to form some glimmering conception of its mighty powers, its bounding from earth and spurning time and space, when freed from the restraint of its corporeal associate.

The paradoxical situation with a vast number of people today is that they are half asleep when awake, and half awake when asleep, or when they want to sleep.

Compared to what we ought to be, we are only half awake.

At other times I wake up from the half sleep I'd fallen into, and hazy images with poetical and unpredictable colours play out their silent show to my inattention.

And I found myself falling off asleep, because in that half-awake state, one’s sensibilities are blunted and happiness can still hover nearby...

When one realizes one is asleep, at that moment one is already half-awake.

Dreams are associated with a state called REM sleep, the abbreviation standing for rapid eye movement. The REM state is strongly correlated with sexual arousal. Experiments have been performed in which sleeping subjects are awakened whenever REM state emerges, while members of a control group are awakened just as often each night but not when they're dreaming. After some days, the control group is a little groggy, but the experimental group - the ones who are prevented from dreaming - is hallucinating in daytime. It's not that a few people with a particular abnormality can be made to hallucinate in this way; anyone is capable of hallucinations.

But then I have long since grown accustomed to the thought that what we call dreams is semi-reality, the promise of reality, a foreglimpse and a whiff of it; that is they contain, in a very vague, diluted state, more genuine reality than our vaunted waking life which, in its turn, is semi-sleep, an evil drowsiness into which penetrate in grotesque disguise the sounds and sights of the real world, flowing beyond the periphery of the mind — as when you hear during sleep a dreadful insidious tale because a branch is scraping on the pane, or see yourself sinking into snow because your blanket is sliding off.

Most of us all walk around as if we're sleepwalking. We really don't experience the world fully, because we're half-asleep, doing things we automatically think we have to do.

We know only the ordinary states of consciousness in which we live; we do not have complete knowledge of reality. When we are awake, we are totally immersed in our waking world. When we dream, our activities, our world, and our understanding are completely different from when we are awake. When we go into the state of deep sleep, we lose consciousness altogether.

Dreams.-This is a subject of much interest to those suffering from nocturnal pollutions, for these occurrences are almost always connected with dreams of a lascivious nature. In perfectly natural sleep, there are no dreams ; consciousness is entirely suspended. In the ordinary stage of dreaming, there is a peculiar sort of consciousness, many of the faculties of the mind being more or less active while the power of volition is wholly dormant. Carpenter describes another stage of consciousness between that of ordinary dreaming and wakefulness, a condition “in which the dreamer has a consciousness that he is dreaming, being aware of the unreliability of the images which present themselves before his mind. He may even make voluntary and successful efforts to prolong them if agreeable, or to dissipate them if unpleasing ; thus evincing a certain degree of that directing power, the entire want of which is characteristic of the true state of dreams.”

I'm almost convinced that I'm never awake. I'm not sure if I'm not in fact dreaming when I live, and living when I dream, or if dreaming and living are for me intersected, intermingled things that together form my conscious self.

The mind is in a sad state when Sleep, the all-involving, cannot confine her spectres within the dim region of her sway, but suffers them to break forth, affrighting this actual life with secrets that perchance belong to a deeper one.

A clearer picture of what is happening in the brain during non-REM sleep,14 during sleepwalking,15 and during confused arousals16 has been achieved through neuroimaging and EEG. It appears that the brain is half awake and half asleep: the cerebellum and brainstem are active, while the cerebrum and cerebral cortex have minimal activity. The pathways involved with control of complex motor behavior and emotion generation are buzzing, while those pathways projecting to the frontal lobe, involved in planning, attention, judgment, emotional face recognition, and emotional regulation are zoned out. Sleepwalkers don’t remember their escapades, nor can they be awakened by noise or shouts, because the parts of the cortex that contribute to sensory processing and the formation of new memories are snoozing, temporarily turned off, disconnected, and not contributing any input to the flow of consciousness.