difference in colors arises simply from the different rates of
etheric vibrations. Again, it is possible to send many telegrams along
the same wire, at the same time, by using senders and receivers of
different vibratory keynotes. The same thing has its corresponding
analogy in the case of the wireless telegraphy. So you see, even on the
physical planes we find many forms of vibratory energy manifesting on,
in, and at the same point of space at the same time, without interfering
one with the other."

Manifold Planes of Existence

The ancient occult teachings have ever insisted upon the presence of
numerous planes of existence, of which our own particular plane is but
one. And all of these numerous planes are equally within the realms of
Nature; none of them being supernatural. And there is always found to
exist a correspondence between these several planes of manifestation;
and, under supernormal conditions, a certain degree of possible
communication between them. Each of these planes has numerous
subdivisions and subplanes, the divisions being according to the rule of
"sevens," as follows: there are seven grand planes, and each of these
are subdivided into seven secondary planes, and each of these into seven
tertiary planes, and so on until the division has been made seven times.

The student of occultism, particularly at the beginning of his studies,
experiences difficulty in comprehending just what is meant by the term
"plane" as employed in the occult teachings. His first impression,
usually encouraged by the use of the dictionary, is that each "plane" is
one of a series of strata or layers, above and below which are present
other layers or strata. Even after the student progresses in his
understanding of the subject, this original picture of material layers
and strata tends to persist in his thought on the subject. The error, of
course, arises from his original conception of the planes, layers, or
strata as being composed of gross material matter, whereas, as a matter
of fact, only one of the many planes is so composed. When one stops to
think that even the grossest form of matter is itself composed of
vibrations of energy (for science teaches that all matter is but energy
at the last); and that all other forms of material substance is likewise
so composed of vibrations of energy; then one is on the road to the
discovery of the real state of affairs. Then he begins to realize that
instead of the planes of being