All we have to believe with is our senses: the tools we use to perceive the world, our sight, our touch, our memory. If they lie to us, then nothing can be trusted. And even if we do not believe, then still we cannot travel in any other way than the road our senses show us; and we must walk that road to the end.
—  Neil Gaiman, American Gods

We are all one. Awaken to that reality and realize that when you help someone else, you are actually helping yourself. The greatest illusion is that we are separate from each other. Yo, we are all the same. We are literally the same thing. So help other people. You end up helping yourself.

The World Concealed:
  
  
“All we can ever know is our own perceptions.
  
The actual world—that is, if such a world even exists—remains concealed from us.”
—  Goran Backlund, Refuting the External World