Yoga Nidra is a deep meditative state of conscious sleep that allows one to commune with divine energy and purify the unconscious mind. It is described as being deeper than dream sleep yet maintaining awareness. Those who practice Yoga Nidra claim it is as restorative as three hours of regular sleep. In addition to being relaxing, Yoga Nidra can provide access to universal knowledge, accelerate learning, and enable astral projection and manifestation through thought forms with continued discipline and practice.