So there is a view in philosophy that sates we are prisoners to our own mind and perspective and anything outside of that isn’t real and there is no way for certain to tell. Imagine your self locked in a theater no way to get and and projected on the scree are things such as flowers, rocks, and rivers. These things you are seeing on the screen are being filmed outside in the real world, but there is no way for you know that it is real, for there is now way for you to escape the elevator and see and all you know that holds to be true is what is projected onto the screen
The matrix D=
Your perspective lies to you often. I don’t know if you’ve ever seen mind games, but they had people watch a crime take place, then they had to choose who the person was that committed the crime from a bunch of people. Everyone chose the wrong person. He was actually at the crime scene, but was completely innocent.
Our senses aren’t here to lead us to truth, just help us survive and function.