Merleau-Ponty on Sleep

"Neither symptom nor cure is worked out at the level of objective or positing consciousness, but below that level. Loss of voice as a situation may be compared to sleep: I lie down in bed, on my left side, with my knees drawn up; I close my eyes and breathe slowly, putting my plans out of my mind. But the power of my will or consciousness stops there. As the faithful, in the Dionysian mysteries, invoke the god by miming scenes from his life, I call up the visitation of sleep by imitating the breathing and posture of the sleeper . The god is actually there when the faithful can no longer distinguish themselves from the part they are playing, when their body and their consciousness cease to bring in, as an obstacle, their particular opacity, and when they are totally fused in the myth. There is a moment when sleep ‘comes’, settling on this imitation of itself which I have been offering to it, and I succeed in becoming what I was trying to be: an unseeing and almost unthinking mass, riveted to a point in space and in the world henceforth only through the anonymous alertness of the senses."

Merleau-Ponty, Maurice (2002-03-14). Phenomenology of Perception (Routledge Classics) (pp. 189-190). Taylor and Francis..