of
these vibrations constitute the difference in our perceptions. Our range
of response is but a limited one. Some vibrations are too rapid and some
too slow to affect our senses, and therefore we have called to our aid
various mechanical contrivances which enable us to recognize existences
which would otherwise remain unknown. But it is still conceivable that
there may be, and doubtless are, conditions of vibratory energy that
escape us, and which, if we could develop finer senses, would yield
wonderful results and extensions of our power and knowledge. Today,
indeed, we are coming into contact with forces, possibilities, and
personalities which amount to a revelation of a new universe of things."

Interpenetrating Planes and Worlds.

Another says: "It is true that 'things are not what they seem'; but
everything seems to be 'thus and so' to us only because of its
particular plane of being, and that plane of being is determined by its
vibrations. On one plane there is a certain vibratory value or speed;
on another plane, a different one; but a plane is not a place, but a
state, and so it is possible that two utterly different planes of being
might co-exist in the same place and be entirely unknown to one another.
That may seem absurd, but it is a scientific truth, and many authorities
have endorsed the same."

Another says: "There may be, right here and now, passing through us and
this world, some planet invisible to us, with mountains, oceans, lakes,
rivers, cities, and inhabitants: and yet we know absolutely nothing of
their existence." Another says: "Some students of the occult find it
difficult to grasp the idea of a number of manifestations, each having
its own rate of vibration, occupying the same point of space at the same
time. A slight consideration of the phenomena of the physical world
would perhaps aid such persons in assimilating the concept in question.
For instance, as every student of physics knows, a single point of space
may contain at the same time vibrations of heat, light of many shades,
magnetism electricity, X-Rays, etc., each manifesting its own rate of
vibration, land yet none interfering with the others."

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