Piston x-ray glitch

This x-ray glitch is very easy to recreate. You just need to go underground 3 blocks and put 2 pistons in front of you with blocks in front of them. Make sure there are non transparent blocks in front of them. Then, and it doesn't matter wether you use normal redstone or commands, you power the pistons and they should push you into the wall behind you. Then, look around. You should be able to see caves and spaces, just like any x-ray glitch.

I also show how to make it in the screenshots.