Reality
What is real, and what does reality look like? Maybe we will never know.
We experience the world through our senses. We feel, touch, smell, hear, and see, but those are just electrical signals sent to our brain. For example, when you see a red color object, there is nothing red out there, just certain wavelengths entering your retina, which send an electrical signal to your brain, and you have the visual sensation of red color. Nothing is red nor any other color. The color appears just in our minds.
The same could be said for all other senses. They all exist just in our minds. In reality, these things that we feel they don't exist.
The world doesn't look the way we perceive it. We're trapped inside a prison of our own minds.