Sri Aurobindo
Letters of Sri Aurobindo
Volume IV - Part 3
The habit you speak of is exceedingly harmful and dangerous; it wastes the energy that should be preserved for the sadhana; it tends to weaken the mind, dislocate the consciousness, exhaust the nervous power, diminish the life-force, create inertia and impotence in the body. The excitations etc. that accompany it build up nothing; their tendency is to disintegrate. Often the result of this habit is to destroy the health and bring in undermining illnesses – it always does so when there is unrestrained indulgence.
There is only one thing to do for those on whom it comes – to break off the habit entirely, uncompromisingly and for ever and never to touch the sex-centre.