" Remember that which is written: "Moderate strength rings the bell: great strength returns the penny." It is always the little bit extra that brings home the bacon. It is the last attack that breaks through the enemy position. Water will never boil, however long you keep it at 99° C. You may find that a Pranayama cycle of 10-20-30 brings no result in months; put it up to 10-20-40, and Dhyana comes instantly. When in doubt, push just a little bit harder. You have no means of finding out what are exactly the right conditions for success in any practice; but all practices are alike in one respect; the desired result is in the nature of orgasm. "
― Aleister Crowley , Magick Without Tears