Another says: "Every beam of sunlight contains many different colors, each with its own degree of vibration, and yet none crowding out the others. By the use of the proper forms of laboratory apparatus each kind of light may be separated from the others, and the ray thus split up. The 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.