What is our reason?

Overwhelmed by a sense of meaningless.
Every moment we live means nothing.
The most controversial man can be remembered for years to come.
But what for?
The earth engulfs us in concrete.
But what engulfs the earth?
We wrap ourselves in our own life’s.
But what are we living for?

And the thought that hallows me-
We are nothing. Our live meaningless (of course not to us)

To stand at the foot of the tallest tree and look up,
To feel so insignificant,
To realise this world is but a speck,
And to realise this worlds controversies mean nothing.

What is our reason?