[Sanskrit: Dharma] may mean (1) Event; a phenomenon in and of itself; (2) mental quality; (3) doctrine, teaching; (4) nibbāna. Also, principles of behavior that human beings ought to follow so as to fit in with the right natural order of things; qualities of mind they should develop so as to realize the inherent quality of the mind in and of itself. By extension, "Dhamma" (usu. capitalized) is used also to denote any doctrine that teaches such things. Thus the Dhamma of the Buddha denotes both his teachings and the direct experience of nibbāna, the quality at which those teachings are aimed.