Yogi explains sleep exercises - Yoga Nidra for deep meditation

A progression of sleep exercises, taken from Yogananda and likened to Yoga Nidra, for building rapport with the unconscious mind: waking at a chosen time, falling asleep on command, waking after five minutes, holding the state between sleep and waking, and moving in and out of sleep. It is framed as training for dropping below the conscious mind in meditation.