The standpoint from which the question of sex is best approached was explained in my book, The Wisdom of the Overself. It is neither pro-ascetic nor anti-ascetic. The man who is called to the spiritual quest is also called to engage in a battle with his animal instincts. If they are to rule him, he will never know peace. And sex being one of the most powerful of such instincts, it must necessarily be brought under control and disciplined. This is true of all its three phases: mental, emotional, and physical. It is quite possible, healthy, and natural for a man to live a perfectly continent life for many years, the sperm being re-absorbed into the body, provided his mental life is kept equally pure. This is achieved by constant reflection upon the matter from the standpoints of experience, observation, and idealism, as well as by deliberate sublimation when passion is felt. Those who say the sperm must be got rid of are merely making intellectual concessions to their own moral weakness. But on the other hand, it is equally true that if a man does not feel able to rise to such a standard, he may live a normal married life and yet make spiritual advancement provided he disciplines himself firmly, keeps constantly in view the limited nature of sex satisfactions, nurtures the incessant yearning for and love of the Soul, and especially seeks to purify his thought-life. There are different requirements about the extent and nature of sex discipline at different stages of the path. Your own innermost promptings are the best guide here for they come from the higher self. But they need to be separated from bodily impulses and emotional broodings, which is difficult to do. It is immaterial for the adept whether he lives a celibate or married life. The attitude toward sex will always depend upon individual circumstances.
-- Notebooks Category 5: The Body > Chapter 7 : Sex > # 13