'Great Perfect Mirror Wisdom.' As a great round mirror reflects all forms exactly as they are， so does the wisdom of the Buddha. A clear， undefiled mind. （1） In Consciousness-only theory， one of the undefiled four wisdoms （四智） that one transforms the defiled mind into upon becoming a Buddha. It is the pure wisdom gained at Buddhahood by a qualitative transformation of the eighth consciousness. In this wisdom， the workings of mind and mental functions are acting in concordance with this wisdom.