A mystical experience happens through unity, an everyday human experience through duality. Duality is when you unconsciously make a distinction between you and

A mystical experience happens through unity, an everyday human experience through duality. Duality is when you unconsciously make a distinction between you and your thoughts and perceptions. "I think therefore I am" is the subject observing his thoughts, this is duality. When you silence your mind, you just are and then there is no opportunity for you to define yourself, to make distinction between what you are and what you're not. "I am all that is" is the subject realizing there is no separation between him and his perceptions, this is unity. Yoga is one systematic way of cultivating this silence that is required to access those mystical states of mind. As for enlightenment, I could not say because I'm not ;).