ETERNITY HAS ALREADY BEGUN - Islamic Books, Islamic Movies ...

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ETERNITY HAS ALREADY BEGUN
Nevertheless, the brain perceives sounds most precisely, so that
a healthy person's ear hears everything without any atmospheric
noise or interference. Your brain is insulated from sound, yet you
listen to the symphonies of an orchestra, hear all the noises in a
crowded auditorium, and perceive all sounds within a wide frequency,
from the rustling of leaves to the roar of a jet plane. However,
were a sensitive device to measure the sound level in your
brain, it would show complete silence prevailing there.
Our perception of odor forms in a similar way. Volatile molecules,
emitted by vanilla extract or a rose, reach receptors in the delicate
hairs in the olfactory epithelium and become involved in an interaction
that is transmitted to the brain as electrical signals and perceived
as smell. Everything that you smell, be it pleasant or repugnant,
is only your brain's perception of the interactions of volatile
molecules transformed into electrical signals. The scent of a perfume,
a flower, any delicious food, the sea, or other odors you like
or dislike, you perceive entirely in your brain. The molecules themselves
never reach there. Just as with sound and vision, what reaches
your sensory centers is simply an assortment of electrical signals.
In other words, all the sensations that, since you were born, you've
assumed to belong to external objects
are just electrical signals interpreted
through your sense organs.
You can never have direct
experience of the true nature of a
scent in the outside world.
Similarly, at the front of your
tongue, there are four different
types of chemical receptors that
enables you to perceive the tastes The scent of a perfume, a flower, any
delicious food, the sea, or other
of salty, sweet, sour, and bitter.
odors we like or dislike, we perceive
After a series of chemical process-
entirely in our brain.