Sex is not your creation: it is God's gift. Something tremendously valuable is hidden in it -- it is just a shell of your samadhi. If the seed is broken, the shell is broken, the flower will bloom -- but not by repression. You will have to learn inner gardening, you will have to become a gardener, you will have to learn how to use dirty fertilizers, manure, and transform manure into roses.
Religion is the most delicate art.
-Osho, "The Fish in the Sea is Not Thirsty, #13"
Who told you that sex is dirty? All life exists through sex, all life grows out of it. All that is beautiful is sexual. The cuckoo crying is not saying a prayer, it is a sexual call. And the flowers Flowering are not flowering for your dead so-called gods in your temples, it is a sexual flowering. All that is beautiful in existence is sexual.
You say: I WANT TO ATTAIN TO BRAHMACHARYA. But why should you want to attain to BRAHMACHARYA? You should try to understand your sexuality. BRAHMACHARYA comes as a consequence. It is not some thing that you attain or that you can attain. The sex obsession is created by you because you want to attain to BRAHMACHARYA. So you go on repressing your sex.
Obviously you will be repressing sex -- because you call it dirty, you call it impure. You think that when you have gone beyond it then you will be pure. You are pure. I declare you pure. As you are, you are perfect. From perfection to more perfection... the journey is not from imperfection to perfection, the journey is from perfection to more perfection. The journey is not from the Devil to God, the journey is from God to more God. You are perfect you are divine, you are pure.
In fact there is nothing more pure than sex. Sex is one of the purest experiences. If it looks impure that is your interpretation. You make it dirty by interpreting it. It is your mahatmas hanging around you who are creating the trouble, it is not the sex that is creating trouble for you. And when you repress it, naturally it waits there waiting for the right moment to bubble up. And whenever you start meditating, feeling that now you are relaxed, you are in a good mood, it starts coming into your fantasies. Seeing that a meditator will be more understanding it asserts itself before you. Feeling that now you will be a little more kind and compassionate the fantasy arises.
-Osho, "Zen: The Path of Paradox, Vol 1, #8, Q3"