Moreover, though we have two eyes, both eyes look at the same object. Also both the eyes are situated on the same side of the face . If one eye were to be at the back, we know very well that we can not hold our attention to any single thing. Thus, as we analyze our organs one by one, we come across numerous marvels. We shall consider yet another organ.
Brain is the most important of all.
It is the seat of thought. But no one knows how it performs that function. In the same way, what we see, hear and learn are registered in the brain. The brain can forget or retain some of them. We have no right to ask why some things are forgotten and why even the things that we want to forget are retained.