Page 102 - Ever Thought About The Truth ?

EVER THOUGHT ABOUT THE TRUTH?

In order to clarify the subject, let us consider our sense of
sight, which provides us with the most extensive information
about the external world.

How Do We See, Hear, And Taste?

The act of seeing is realised in a very progressive way. Light
clusters (photons) that travel from the object to the eye pass
through the lens in front of the eye where they are broken up and
fall in reverse on the retina at the back of the eye. Here, the im-
pinging light is turned into electrical signals that are transmitted
by neurons to a tiny spot called the centre of vision in the back
part of the brain. This electrical signal is perceived as an image in
this centre in the brain after a series of processes. The act of see-
ing actually takes place in this tiny spot at the posterior part of
the brain, which is pitch-dark and completely insulated from
light.
Now, let us reconsider this seemingly ordinary and unre-
markable process. When we say that "we see", we are in fact see-
ing the effects of the impulses reaching our eye and induced in
our brain after they are transformed into electrical signals. That
is, when we say that "we see", we are actually observing electri-
cal signals in our mind.
All the images we view in our lives are formed in our centre
of vision, which makes up only a few cubic centimetres of the
volume of the brain. Both the book you are now reading and the
boundless landscape you see when you gaze at the horizon fit
into this tiny space. Another point that has to be kept in mind is
that, as we have noted before, the brain is insulated from light; its

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