nancy wasserman--rubberpratyhara

''in my opinion, the most effective instruction available to prepare oneself for the practice of pratyhara remains aleister crowley's liber iii vel jugorum. ... crowley's instructions in liber jugorum state that the aspirant should, with each transgression, make a cut in his forearm with a razor blade. this may not be a viable option for many people. i have had good results using a thick, tight rubber band around the wrist. with each transgression, a sound thwack did the trick!''

nancy wasserman; yoga for magic, chapter-pratyhara.