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Thaumaturgy is the capability of a magician or a saint to work magic or miracles. Isaac Bonewits defined thaumaturgy as "the use of magic for nonreligious purposes; the art and science of 'wonder working;' using magic to actually change things in the physical world". It is sometimes translated into English as wonderworking. A practitioner of thaumaturgy is a "thaumaturgus", "thaumaturge", "thaumaturgist" or "miracle worker".