There are other things that he grasps at more vaguely and later; he is dimly aware that people have lived before, and he is less dimly aware that people live in places different from his own surroundings. He realises that some of the stories, such as the fairy stories, are true in one sense, a sense that responds to something within himself; that some are true in another more material, and external sense, one concerned with things that really happen. He hears of "black men," and of "ships that carry people across the sea," and of "things that come back in those ships." He is interested in the immaterial world suggested by the mysteries of woods and gardens, he has a dim conception that there is some life beyond the visible, he feels a power behind life and he reveals this in his early questions. He is keenly interested in questions of birth and death, and sometimes comes into close contact with them. He feels that other wonders must be accounted for--the snow, thunder and lightning, the colours of summer, the changeful sea. At first the world of fairy lore may satisfy him, later comes the life of the undying spirit, but the two are continuous. He may attend "religious observances," and these may help or they may hinder. He is keenly interested in games, whether they are games of physical skill, of mental skill, or games of pretence. Here most especially he comes into contact with other people, and here he realises some of the experiences of social life. Such are the most usual sides of life sought by the ordinary child, and on such must we base the surroundings we provide for our children in school, and the aspects of life to which we introduce them, commonly called subjects of the curriculum. _Our third principle is therefore, evident: we find, in the child's spontaneous choice, the nature of the surroundings and of the activities that he craves for; in other words, he makes his own curriculum and selects his own subject matter_.