Ask yourself a question; what does our perception of reality rely upon?
Our perception of reality has a dual meaning; how we understand reality, and also how we view it ourselves. Reality, as we understand it, has a simple meaning; everything. Every feeling, emotion, object, thing, and idea is all part of our reality. You view reality through the use of your eyes, your nose, your brain, and your ears.
Returning to the original question, I believe that our perception of reality relies on a single thing: Trust.
How, you ask? Consider this. You are the only one that truly knows that you are conscious. What if everyone and everything is a creation of your mind? Something that you've created to entertain yourself. What if this all an illusion, and at the moment you're in, say, a coma? We already know that our eyes and brains can trick us, so what if this is one great trick?
Why should you follow the rules, if this is all an illusion, and nothing is real? Because whether or not it is real, you still exist inside it, and this reality has rules to bind you.
So ask yourself; What is real?