Perspective

In my view, there is one powerful word in the English dictionary, which is the key manipulator of our humanity. It's "Perspective". Everybody carries their own perspectives. It defines what is important to them and what is not. Two people having a common perspective become friends, otherwise, they become enemies, in worst case. The depth of their friendship or enmity is define by the how much overlapping their perspectives are.

There is no perspective that is always right or wrong. Something you feel right may not possibly agree with the other person's view. He might have his own reasons to disagree with you, however illogical they are. Some times, a given perspective may appear right, perhaps just for a short period of time; however over a long run, it may be absolutely disastrous. For example, religion was formed to bring order in the chaotic society. Though it did well earlier, they are now driving us to religion wars. If people who developed religion foresighted this, there could have come-up with something better than what we have today. We are now too struck with our religion, which is a perspective though, to think of anything contradictory.

Secondly, perspectives of an individual defines his identity. Any contradiction to his perspectives make him feel threatened to his identity. The identity can also be called as "Ego". A person is egoistic, if he believes firmly on his perspectives, and self-center in them. A person is egotist, if he brags about his achievements, as he perceive value in those, and wants to show off to make others feels the same.

Finally, people are too busy in airing their own perspectives, despite wrong, to hear anything opposing. Many people are not realizing because realizing anything does not fetch them immediate benefits. People understand others views if they can easily relate to their perspective. If they could not relate, they feel that they either did not understand or it is stupid.

[There are many things in life that could be explained with one word "Perspective". I tried to cover as much as possible. For remaining things, you could come up with your own analogies]