Holotropic Breathwork is a technique used for relaxation, self-awareness, and consciousness expansion. Czech psychiatrist Stanislav Grof pioneered the method in the 1970s as part of his work with psychedelic substances. Holotropic breathing is a deep breathing method used to oxygenate the body and induce a state of altered consciousness in the mind. By concentrating on the breath and breathing more deeply than normal, one can enter the unconscious and have strange experiences.