"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.”"
January 1, 1970
https://en.wikiquote.org/wiki/Dreams