aura consists of the vibrations set up by the body ....
There are many auras, but the ones that are known to your
world are the auras that surround the physical body and
the spirit body. All things have auras, even things which
do not have consciousness within them. The aura consists
of the vibraitons that emanate from the body, and according
to the state of the body, so there are different vibrations.
Those who can see the auras and can interpret them know
all the secrets of the individual. They can diagnose the
health of the individual. They know tha state of his soul
and his mind's unfoldment. They can tell the evolution of
that soul, for it is the aura that enables you all to be
read as an open book. Your aura registers all that you have
said, all that you have thought and all that you have done.
Your aura is your eternal judgment, for there you are showing
to those who can see exactly what you are within and not
as you show yourselves without. The aura of the physical
body has more to do with physical things, such as th health,
the temper or habits. All these things register in different
colors." (Silver Birch)