Some take a short-cut at this point, discovered after Patanjali or not known to him, by having themselves locked up in caves. Such isolation, as indicated earlier, helps vastly in bleaching out all four hominid circuits. An alternative, for those not attracted to either celibacy or becoming hermits, is Tantra, invented in northern India around the time of Patanjali. This simply transmutes the fourth circuit by ceremonial, physiological and “magick” (self-hypnotic) explosion of the (prolonged) sexual act into fifth-circuit neurosomatic rapture.