we must examine the specific ideas themselves and the associated feelings and emotions. Thus, then, the further question arises: Wherein consists the content of primitive thought? _Two_ sorts of ideas may be distinguished. The one comprises that stock of ideas which is supplied to consciousness by the direct perceptions of daily life--ideas such as go, stand, lie, rest, etc., together with animal, tree (particularly in the form of individual animals and trees), man, woman, child, I, thou, you, and many others. These are objects of everyday perception that are familiar to all, even to the primitive mind. But there is also a _second_ class of ideas. These do not represent things of immediate perception; briefly expressed, they originate in feeling, in emotional processes which are projected outward into the environment. This is an important and particularly characteristic group of primitive ideas. Included within it are all references to that which is not directly amenable to perception but, transcending this, is really _supersensuous_, even though appearing in the form of sensible ideas. This world of imagination, projected from man's own emotional life into external phenomena, is what we mean by _mythological_ thinking. The things and processes given to perception are supplemented by other realities that are of a non-perceptible nature and therefore belong to an invisible realm back of the visible world. These are the elements, furthermore, which very early find expression in the _art_ of primitive man. 7. EARLIEST BELIEFS IN MAGIC AND DEMONS. In entering upon a consideration of the development of primitive myths, we are at once confronted by the old question disputed by mythologists, ethnologists, and students of religion, Where and when did religion originate? For is not religion always concerned with the supernatural? Now, in certain cases, even primitive man supplements the sensuous world in which he lives and whose impressions he has not so much as elaborated into abstract concepts, with supersensuous elements, though he himself, of course, is unaware of their supersensuous character. The question, therefore, lies near at hand: Is religion already present at this stage, or is there at most a potentiality of religion, the germ of its future development? If the latter should be true, where, then, does religion begin? Now, our interest in the history of myth-formation derives largely from the very fact that the problem is intimately bound up with that of the origin of religion. Merely in itself the origin of the myth might have relatively little interest for us. The question, however, as to how religion arose acquires its great importance through its connection with the two further questions as to whether or not religion is a necessary constituent of human consciousness and whether it is an original possession or is the result of certain preconditions of mythological thought.