When you can distinguish between the desires of the Nafs and the longings of the Rooh, then , perhaps, the spiritual work has begun. You can then choose to identify with the Rooh rather than the baser instincts of the Nafs. It gives you the much needed peace because you don’t have to carry the guilt associated with the constant eruption of these desires and the identification with them. You can, now, calmly observe these thoughts, without judging yourself, and without beating yourself up for thoughts you can’t control.