There are many forms of Buddhism; and in [189] modern Japan there are twelve principal Buddhist sects; but, for present purposes, it will be enough to speak, in the most general way, of popular Buddhism only, as distinguished from philosophical Buddhism, which I shall touch upon in a subsequent chapter. The higher Buddhism could not, at any time or in any country, have had a large popular following; and it is a mistake to suppose that its particular doctrines--such as the doctrine of Nirvana--were taught to the common people. Only such forms of doctrine were preached as could be made intelligible and attractive to very simple minds. There is a Buddhist proverb: "First observe the person; then preach the Law,"--that is to say, Adapt your instruction to the capacity of the listener. In Japan, as in China, Buddhism had to adapt its instruction to the mental capacity of large classes of people yet unaccustomed to abstract ideas. Even to this day the masses do not know so much as the meaning of the word "Nirvana" (Nehan): they have been taught only the simpler forms of the religion; and in dwelling upon these, it will be needless to consider differences of sect and dogma. To appreciate the direct influence of Buddhist teaching upon the minds of the common people, we must remember that in Shinto there was no doctrine of metempsychosis. As I have said before, the spirits of the dead, according to ancient Japanese thinking, continued to exist in the world: they [190] mingled somehow with the viewless forces of nature, and acted through them. Everything happened by the agency of these spirits--evil or good. Those who had been wicked in life remained wicked after death; those who had been good in life became good gods after death; but all were to be propitiated. No idea of future reward or punishment existed before the coming of Buddhism: there was no notion of any heaven or hell. The happiness of ghosts and gods alike was supposed to depend upon the worship and the offerings of the living.