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A Series of Lessons in Raja Yoga582
times. As Wilson says of it, “Our sight may be considered as a more delicate
and diffusive kind of touch that spreads itself over an infinite number of
bodies; comprehends the largest figures, and brings into our reach some of
the most remote parts of the universe.”
The sense of Sight receives its impressions from the outside world by
means of waves that travel from body to body—from sun to earth, and
from lamp to eye. These waves of light arise from vibrations in substance,
of an almost incredible degree of rapidity. The lowest light vibration
is about 450,000,000,000,000 per second, while the highest is about
750,000,000,000,000 per second. These figures deal only with the
vibrations recognizable by the eye as light. Above and below these figures
of the scale are countless other degrees invisible to the eye, although some
of them may be recorded by instruments. The different sensations of color,
depend upon the rate of the vibrations, red being the limit of the lowest,
and violet the limit of the highest visible vibrations—orange, yellow, green,
blue, and indigo being the intermediate rates or colors.
The cultivation of the sense of Sight, under the aid of Attention is most
important to all persons. By being able to clearly see and distinguish the
parts of an object, a degree of knowledge regarding it is obtained that one
may not acquire without the said exercise of the faculty. We have spoken of
this under the subject of Attention, in a previous lesson, to which lesson we
again refer the student. The fixing of the eye upon an object has the power
of concentrating the thoughts and preventing them from wandering. The
eye has other properties and qualities that will be dwelt upon in future
lessons. It has other uses than seeing. The influence of the eye is a marvelous
thing, and may be cultivated and developed.
We trust that what we have said will bring the student to a realization of
the importance of developing the powers of Perception. The senses have
been developed by the mind during a long period of evolution and effort
that surely would not have been given unless the object in view was worth
it all. The “I” insists upon obtaining knowledge of the Universe, and much of