Kriya yoga is a simple, psychophysiological method by which human blood is decarbonated and recharged with oxygen. The atoms of this extra oxygen are transmuted into life current to rejuvenate the brain and spinal centers. By stopping the accumulation of venous blood, the yogi is able to lessen or prevent the decay of tissues. This advanced yogi transmutes his cells into energy. Elijah, Jesus, Kabir and other Prophets were past masters in the use of kriya or a similar technique, by which they caused their bodies to materialize and dematerialize at will.