You´re not perceiving what's out there. You're perceiving whatever your brain tells you.

When one part of the brain makes a choice, other parts can quickly invent a story to explain why. If you show the command "Walk" to the right hemisphere (the one without language), the patient will get up and start walking. If you stop him and ask why he's leaving, his left hemisphere, cooking up an answer, will say something like "I was going to get a drink of water."

What we find is that our brains have colossal things happening in them all the time.

Even though the outside world has not changed, your brain dynamically presents different interpretations.

The majority of human beings live their whole lives unaware that they are only seeing a limited cone of vision at any moment.

Your brain is built of cells called neurons and glia - hundreds of billions of them. Each one of these cells is as complicated as a city.

All life will die, all mind will cease, and it will all be as if it had never happened. That, to be honest, is the goal to which evolution is traveling, that is the "benevolent" end of the furious living and furious dying.