This term refers to elevation of moral character, a concept which is first mentioned in early Confucian classics such as The Analects and The Book of Changes. Confucianism placed great emphasis on human morals, believing that such morals should be constantly fostered and elevated; and this is the process of moral elevation. By steadfastly observing the moral principles of loyalty and good faith, people can improve their pronouncements and deeds, thereby elevating their moral cultivation. Moral elevation can only be achieved through sustained efforts.