“Having the evil inclination is actually something of great benefit to us.  It is with this that we can truly serve God.  When we are subjected to the fierce heat of the evil inclination, we have the capacity to steel ourselves to get the better of it.  Then we can channel this passion into an act of genuine service.  If a man lacked the evil inclination, all his service would amount to nothing.  That is why God allows the evil inclination to do its work and to infect everyone to such a degree, none more so than the ones who genuinely yearn to draw close to God.

It is true that the onslaught and sickness of the evil inclination can reduce people to terrible lows and bring them to much sin and wrongdoing.  But in God’s eyes, all this is good and fitting because of the preciousness of those stirrings and gestures which a person makes when he is beset by the full force and power of the evil inclination.  Even so he stirs himself to escape from it.  Through this simple gesture of determination, he accomplishes more than he would if he were to serve God for a thousand years without the evil inclination.”  R’ Nachman of Breslov zt”l