We purpose in these few introductory remarks to lay down the foundation for a "Treatise on Cosmic Fire," and to consider the subject of fire both macrocosmically and microcosmically, thus dealing with it from the standpoint of the solar system, and of a human being. This will necessitate some preliminary technicalities which may seem at first perusal to be somewhat abstruse and complicated but which, when meditated upon and studied, may eventually prove illuminating and of an elucidating nature, and which also, when the mind has familiarized itself with some of the details, may come to be regarded as providing a logical hypothesis concerning the nature and origin of energy. We have elsewhere, in an earlier book, touched somewhat upon this matter, but we desire to recapitulate and in so doing to enlarge, thus laying down a broad foundation upon which the subject matter can be built up, and providing a general outline which will serve to show the limits of our discussion.