In the physical body we have the fires of the lower nature (the animal plane) centralized at the base of the spine. They are situated at a spot which stands in relation to the physical body as the physical sun to the solar system. This central point of heat radiates in all directions, using the spinal column as its main artery, but working in close connection with certain central ganglia, wherever located, and having a special association with the spleen.In the etheric body, which is an exact replica of its denser counterpart, we have the organ of active or radiatory fire, and, as is well known, the vehicle of prana. Its function is to store up the rays of radiatory light and heat which are secured from the sun, and to transmit them, via the spleen, to all parts of the physical body. Hence in the future it will come to be recognized that the spine and the spleen are of the utmost importance to the physical well-being of man, and that when the spinal column is duly adjusted and aligned, and when the spleen is freed from congestion and in a healthy condition, there will be little trouble in the dense physical body. When the physical furnace burns brightly and when the fuel of the body (pranic rays) is adequately assimilated, the human frame will function as desired.
The subject of the blending of these two fires, which is complete in a normal and healthy person, should engross the attention of the modern physician. He will then concern himself with the removal of nerve congestion or material congestion, so as to leave a free channel for the inner warmth. This blending, which is now a natural and usual growth in every human being, was one of the signs of attainment or of initiation in an earlier solar system. Just as initiation and liberation are marked in this solar system by the blending of the fires of the body, of the mind and of the Spirit, so in an earlier cycle attainment was marked by the blending of the latent fires of matter with the radiatory or active fires, and then their union with the fires of mind. In the earlier period the effects in manifestation of the divine Flame were so remote and deeply hidden as to be scarcely recognizable, though dimly there. Its correspondence can be seen in the animal kingdom, in which instinct holds the intuition in latency, and the Spirit dimly over-shadows. Yet all is part of a divine whole.