Buddha eye ［仏眼］ ( butsu-gen): The supreme perceptive faculty possessed by a Buddha. One of the five types of vision. A Buddha is said to perceive the true nature of all things and phenomena, transcending limitations of time and space. The Nirvana Sutra says, “Those who study the teachings of the great vehicle, though they have the eyes of ordinary beings, are said to have the eyes of the Buddha.”