But such mandates were as unsuccessful as other similar schemes have been. In the third century A. D. after the Han dynasty had ended, China was broken up into several small kingdoms which contended for supremacy, so that for about four hundred years the whole country was in a state of disunion. One of the strong dynasties of this period, the Northern Wei (386-535 A. D.), was distinctly loyal to Buddhism. During its continuance Buddhism prospered greatly. Although Chinese were not permitted to become monks until 335 A. D., still Buddhism made rapid advances and in the fourth century, when that restriction was removed, about nine-tenths of the people of northwestern China had become Buddhists. Since then Buddhism has been an established factor in Chinese life. III THE ESTABLISHMENT OF BUDDHISM AS THE PREDOMINATING RELIGION OF CHINA Even the historical influences noted above do not account entirely for the spread of Buddhism in China. In order to understand this and the place which Buddhism occupies, we need to review briefly the different forms which religion takes in China and to note how Buddhism has related itself to them. _1. The World of Invisible Spirits_ The Chinese believe _in_ a surrounding-world of spirits, whose origin is exceedingly various. They touch life at every point. There are spirits which are guardians of the soil, tree spirits, mountain demons, fire gods, the spirits of animals, of mountains, of rivers, seas and stars, of the heavenly bodies and of many forms of active life. These spirits to the Chinese mind, of today are a projection, a sort of spiritual counterpart, of the many sided interests, practical or otherwise, of the groups and communities by whom they are worshipped. There are other spirits which mirror the ideals of the groups by which they are worshipped. Some of them may have been incarnated in the lives of great leaders. There are spirits which are mere animations, occasional spirits, associated with objects crossing the interests of men, but not constant enough to attain a definite, independent life as spiritual beings. Thus surrounding the average Chinese peasant there is a densely populated spirit world affecting in all kinds of ways his, daily existence. This other world is the background which must be kept in mind by one who would understand or attempt to guide Chinese religious experience. It is the basis on which all organized forms of religious activity are built. The nearest of these to his heart is the proper regard for his ancestors. _2. The Universal Sense_ of _Ancestor Control_