2. Wakefulness and sleep are the two most familiar states of consciousness. Others include dreaming, meditation, trance, hypnosis and self-hypnosis, hallucination, astral projection, etc. ASCs can be induced by sleep deprivation, chanting, fasting, ecstatic dancing, drumming, sex, psychedelic drugs, and conscious self-programming. Once you’ve been "there," it is easier to get there again.