The Hindu-Yogi Science of Breath

If you feel that your vital energy is at a low ebb, and that you need to store up a new supply quickly, the best plan is to place the feet close together (side by side, of course) and to lock the fingers of both hands in any way that seems the most comfortable. This closes the circuit, as it were, and prevents any escape of prana through the extremities. Then breathe rhythmically a few times, and you will feel the effect of the recharging.