An individual that has supernatural knowledge or experiences not imposed by outside forces, usually due to an awakened kundalini. More specifically, a mystic is a positive individual, not of the dark side of the force for which the word 'witch' or 'sorcerer' is usually used instead.
Mystics are sometimes marked by a particular kind of experience in which
great physical suffering becomes a supernatural spiritual ecstasy.
Mystics come out of all religious and spiritual backgrounds.
In the slang , mystic is an adjective used to refer to something of wonderous powers or capabilities.
St. John of the Cross was a mystic.
St. Francis of Assisi was a mystic.
That weed we smoked last night was mystic.