One of the first barriers in the spiritual path is being stuck in the way in which we see ourselves, begining with our own body and sexual force.
The notion of original sin was invented and used to enslave humanity. Once you feel something that is intrinsically part of you is your enemy, that it is shameful, and that it can only be exercised with permission of the elite, then they got you.
You live as a slave to someone else’s ideals and judgements. Especially when you internalize this belief, when you make it your own, and when you yourself begin to censor your expression, to censor your force. Then, everything that you do is already controlled by those who control your moral center.