Sri Aurobindo
Letters of Sri Aurobindo
Volume IV - Part 3
To be conscious [of the sexual movement] is the first step, but by itself it is not enough; there must come an automatic force 
of rejection which the moment desire and passion arise throws it off so that it ebbs back from the mind or vital or wherever it touches. This comes either by a strong will of rejection becoming habitual in its action on the consciousness, or by the detached inner being developing an automatic dynamic strength in itself so that it is not only not touched, but refuses these things by an active purifying power or, finally, by the full emergence of the psychic and its government of the mind, vital and body. The last is the most rapid and easy way. Till then these things recur. But probably in yourself there is still some sense of the old idea of sin or fault which makes you feel troubled. You must take it as an adjustment of the nature that is going on in which old movements which you no longer accept as yours return from force of habit and get a habitual response from some part of the being. But if that part of the being can be made to reject it, then the response begins to fade away. You must not allow yourself or your mind to feel troubled by the returns; for that only weakens the power of resistance. There should be calm dissociation of yourself from these things; then the detached inner being will become more easily dynamic and able to reject them from the vital nature.