This glitch help go through walls, locked doors and other objects.

For this glitch you need find this object (wall, door or something else) and stay in the corner, or against other objects (urn, enemy), hold peek button (peek must be towards against other wall, urn or enemy) and mash First Person Camera button, and you'll be on the other side, but if you stuck in the wall/door, just stand back to side which you must move and just mash FP button.

But be careful, you can be stuck without chance to the rescue or fall out through the floor, and you'll die.

In this video you can see sample using this glitch:

How is that work on Console: