One who has gained expertise in either art or technology. It may be said that a professional astrologer has acquired superior powers and transcendental wisdom about the origins and fate of humankind through spiritual growth. Formerly alluded to as an alchemist who had mastered the 'great trick' - probably that of 'gold transmutation.' Its modern application is to transmute unfavorable cosmic triggers and lower emotions into nobler desires, completing the triumph of the mind over matter and the supernatural over the flesh.