Quite secondary to these numerous irradiations of magical ideas among primitive peoples are the general notions connected with natural phenomena. A cloud may, no doubt, occasionally be regarded as a demon. And, as already stated, an unusual natural phenomenon, such as an eclipse of the sun, is likewise almost everywhere regarded as a demoniacal event. But, on the whole, celestial phenomena play a passing and an exceedingly variable rôle in the beliefs of primitive man. Moreover, while the ideas and the resultant acts engendered by death and sickness are, on the whole, of a uniform character, the fragments of celestial mythology vary in an irregular and self-contradictory manner. For this reason the latter cannot be regarded as having any important significance on the earliest plane of culture. This flatly contradicts a theory, still prevalent in the scientific world, to the effect that all mythological thinking is due to the influence of celestial phenomena, whether it be the moon in its changing phases, or the sun, the thunderstorm, or the clouds. This theory is certainly not valid as regards primitive man. It can be maintained only if we distinguish--as has, indeed, sometimes been done--between two completely disparate realms, a 'higher' mythology, exemplified by the above, and a 'lower' mythology. We shall return to this point later. We are here concerned with the standpoint of nature-mythology only in so far as it has exercised a decisive influence on the interpretation of the earliest manifestations of the 'lower' mythology. With respect to the ultimate psychological motives of mythology as a whole, including that of primitive man, the idea is even to-day widely current that mythological thought was from the very beginning a naïve attempt at an interpretation of the phenomena which man encounters in nature or in his own life. That is to say, all mythology is regarded as a sort of primitive science, or, at any rate, as a precursor of philosophy. This innate need for explanation is then usually associated with an alleged _a priori_ principle of causality inherent in the mind. The mythological view of nature, therefore, is supposed to be nothing but an application--imperfect as yet, to be sure--of the causal law to the nexus of phenomena. But if we call to mind the condition of natural man as revealed in his actions, no trace can be found of any need for explanation such as requires the initial employment of the concept of causality. Indeed, as regards the phenomena of daily life and those that surround him on all hands and constantly recur in a uniform manner, primitive man experiences no need at all for explanation. For him everything is as it is just because it has always been so. Just as he dances about an arrow because his father and his grandfather practised this custom in the past, so also does he hold that the sun rises to-day because it rose yesterday. The regularity with which a phenomenon recurs is for him sufficient testimony and