There is a hidden teaching on sex in the Orient. This is known as tantrik yoga. The full teaching has usually been unavailable to the general public because of the dangers of misunderstanding and misuse should it fall into the hands of the unready or unworthy. The other systems of yoga generally favour an ascetic and stoical attitude toward sex whereas the tantrik system does not. In this modern age when so much of the hidden teaching has been revealed so widely, there is no reason why the tantrik teaching should remain completely hidden. If properly placed in the setting of a system of self-discipline and self-development, and if properly expounded with reasons, causes, and effects made quite clear, if kept free from all the entangling symbolism which has grown around the teaching during the centuries, it may have something useful to contribute to modern knowledge and modern living.
-- Notebooks Category 5: The Body > Chapter 7 : Sex > # 63
