Purpose

It is purpose that created us,
it is purpose that connects us
it is purpose that pulls us
it is purpose that drives us, that defines us and binds us.

~ Agent Smith

Rarely are there concepts which are of mammoth significance to us and yet we are completely oblivious to it. Purpose, Aristotle has long ago tackled this problem for us. The question of purpose and what it means to know and not to know it. To know it personally is an arduous journey.
To understand purpose one have to look elsewhere first instead of at oneself. The proper functioning of an entity and its primary purpose. Look at nature, has nature created anything "useless" before? Has there every been a product of mother nature which is truly completely useless? A tree has its purpose and many "sub-purposes" some of them supporting each other. But misunderstanding of it could make it divert from its primary purpose. Below is an example.
Imagine a pen, a pen with a cap used to cover the tip. Imagine it was used to break a lock. Would it be possible? If this pen fails to break the lock, would it then be a "lousy" pen, a failure amongst it's peers? I am sure we have the same answer.
The pen has one purpose, and one true purpose only that is to write. Every aspect of its physical properties have been geared towards that end-state in mind. Its material, light; for ease of writing, the ink ; for staining the paper, to facilitate writing, the tip; to regulate the flow of the ink, etc, etc.
Now look at a human being, a person. Consider ALL of his/her physical properties....