"Chaotic breathing" is the first step in Osho dynamic meditation.
Breath should be “intense, deep, fast, without rhythm, with no pattern” — and always through the nose — a slow, pre-recorded tenor informed me the first time I tried it at Osho International Meditation Resort in Pune, India. Only exhale, the voice commanded. Inhalation comes naturally.
Music began. Deep, percussive, unmelodious, and measureless. I inhaled, gazed into my blindfold, and prepared to plunge.