But when we think of the personal magnetism, we divide it into four different classes. The one kind, the ordinary kind of magnetism, is what is concerned with the physical plane, and this magnetism has to do with nourishment, with hygiene, with regular living and with right breathing; also this magnetism depends upon the regularity of action and repose; besides, this magnetism works with the age, as the ascending and descending of notes in an octave. This magnetism may be likened to the season of spring, which comes and which goes; and at the same time this magnetism is dependent upon all things of this physical world, since this is a physical magnetism.