Indifference.

Indifference is the rain that falls upon you as well as me. It doesn't give a damn who we are or what we do.
It is the predator sinking its teeth onto its victims neck. It is hungry. No offense.
It is when you feel nothing, null and void.

And the rain starts to fall.
“The world is very lovely, and it's very horrible--and it doesn't care about your life or mine or anything else.”
- Kipling