On every plane we have, relatively speaking:

1. Electric fire demonstrating as the prime condition on the higher three.
2. Fire by friction as the most significant factor on the lower three.
3. Solar fire, showing forth as the blaze produced by union on the central plane.

In the solar system this is to be seen in connection with a Heavenly Man on the buddhic plane, where They blaze forth through Their etheric centers. In connection with man on the mental plane, we have a similar condition: the three higher subplanes concern the Spirit aspect in the causal body, the three lower subplanes concern primarily the mental sheath, or fire by friction; the fourth subplane is that on which the force centers of the mental body are to be found. So it is on the physical plane for man - his etheric centers being located in matter of the fourth ether.

Each of the three Persons of the Trinity manifests equally as does a man, as Spirit, Soul or Ego, and Substance. In connection with Brahma, we have the Spirit aspect animating the three higher subplanes of every plane, or the first fire aspect. His soul aspect is found on the fourth subplane of each plane whereon are situated the etheric centers of all manifested entities. His substance aspect is primarily contacted on the three lower subplanes. Hence we have the forty-nine fires of matter, or the seven fires of each plane, the union of the higher three and the lower three producing that blaze which we call the wheels of fire or the centers on the fourth subplane of each plane.

For man, the microcosm, a similar differentiation is possible; His Monad can be studied in its threefold essence on its own plane, his egoic aspect likewise, and the Brahma aspect of the Ego is found within the permanent atoms. Students should therefore study with care:

1. The Planes. The manifestation of Brahma, the third or substance aspect, and should apply to this Entity the same triple constitution as is apparent in the other two. The planes of electric fire, the planes of his lower nature, and the point of blazing forth or conflagration for him (the etheric centers) must be carefully studied. Brahma is the positive life of matter; He is the revelation of substance and the blaze that can be seen.
2. Vibration. The manifestation of the second aspect. These vibrations of consciousness are the major three words which are the sumtotal of egoic life, the minor three which govern the third aspect of the Ego, and the chord of at-one-ment which is that which is sounding forth now.

The three aspects of Spirit as they are seen can only be expressed in terms of the other two in this solar system, and of their nature extra-systemically naught can profitably be said at this stage of cognition.