Paramahansa Yogananda,
Autobiography of a Yogi — Chapter 18
(1946)
“ Go; bring me water quickly.'"Afzal's reverent obedience was rewarded by a loving glance from the yogi."'You possess good karma from former lives,' he observed solemnly. 'I am going to teach you a certain yoga method which will give you command over one of the invisible realms. The great powers that will be yours should be exercised for worthy ends; never employ them selfishly! I perceive, alas! that you have brought over from the past some seeds of destructive tendencies. Do not allow them to sprout by watering them with fresh evil actions. ”
