In witchcraft, High Magick (not to be confused with ceremonial magick) is the practice and study of esoteric and/or paranormal disciplines specifically designed to promote the Great Work, which is the perfection of the spiritual self so that one may help the World advance spiritually. High magick is not specifically complex, difficult, or structured, although the majority of the individual systems used tend to be so. Thelema, alchemy, Rosicrucianism, and the initiatory and relevatory aspects of Wicca are some examples of high magick.

Some people find the term "high magick" misleading, believing it means that this kind of magick is somehow better than "low magick". This is not true. They are merely different. High magick is the alteration of the self according to Will, while low magick is the alteration of one's environment. A self-purification ritual like a Native American sweat lodge is high magick, while a ritual done to bring a bountiful harvest is low magick.