The whole universe is contained within a single human being—you. Everything that you see around, including the things you might not be fond of and even the people you despise or abhor, is present within you in varying degrees. Therefore, do not look for Sheitan outside yourself either. The devil is not an extraordinary force that attacks from without. It is an ordinary voice within. If you get to know yourself fully, facing with honesty and hardness both your dark and bright sides, you will arrive at a supreme form of consciousness. When a person knows himself or herself, he or she knows God.
– Shams-e-Tabriz rahimahu Llah –