By the establishment of continence energy is gained.
In plain words: Controlling sexual desire gives a person great energy. The teacher says this self-control builds strong willpower and spiritual strength.
The chaste brain has tremendous energy and gigantic will-power. Without chastity there can be no spiritual strength. Continence gives wonderful control over mankind. The spiritual leaders of men have been very continent, and this is what gave them power. Therefore the Yogi must be continent.
Namaste.
A calm guide to life, the mind and the old teachings.