You are wearing a headset right now.
Just believe me ok? Everything you see is kind of a video stream, streamed directly into your mind.
A simple method to slightly warp your perception of the matrix: (leave a comment if it worked)
Stare at an object for a long time.
Look at all it's details and imperfections.
Make sure to not leave a single detail unobserved.
This is a method used to wake up from inside a dream (the regular kind)
What it would result in if you did it: You would feel like the object is slipping away/not real.
I did it once, i think it worked.
This article has more methods on how to wake up from dreams.