at this level. Such memory of the appearance of a causal body as it is
possible for a clairvoyant to bring into his physical brain represents it
as ovoid, and as surrounding the physical body of the man, extending to a
distance of about eighteen inches from the normal surface of that body. In
the case of primitive man it resembles a bubble, and gives the impression
of being empty. It is in reality filled with higher mental matter, but as
this is not yet brought into activity it remains colourless and
transparent. As advancement continues it is gradually stirred into
alertness by vibrations which reach it from the lower bodies. This comes
but slowly, because the activities of man in the earlier stages of his
evolution are not of a character to obtain expression in matter so fine as
that of the higher mental body; but when a man reaches the stage where he
is capable either of abstract thought or of unselfish emotion the matter of
the causal body is aroused into response.

When these rates of undulation are awakened within him they show themselves
in his causal body as colours, so that instead of being a mere transparent
bubble it gradually becomes a sphere filled with matter of the most lovely
and delicate hues--an object beautiful beyond all conception. It is found
by experience that these colours are significant. The vibration which
denotes the power of unselfish affection shows itself as a pale
rose-colour; that which indicates high intellectual power is yellow; that
which expresses sympathy is green, while blue betokens devotional feeling,
and a luminous lilac-blue typifies the higher spirituality. The same scheme
of colour-significance applies to the bodies which are built of denser
matter, but as we approach the physical world the hues are in every case by
comparison grosser--not only less delicate but also less living.

In the course of evolution in the lower worlds man often introduces into
his vehicles qualities which are undesirable and entirely inappropriate for