The following is an section taken from the anomalous book that can occasionally be found throughout the backrooms titled "A Definitive Guide to the Backrooms by Oliver Maelstrom". Multiple copies of this book are in M.E.G possession and are currently being studied. Certain sections of it have been released to the public due to them providing useful information pertaining to survival in the Backrooms.
Introduction to noclipping
Noclipping (or no-clipping) is the everyman's way of traversing the Backrooms, simple and easy, all it takes is a leap of faith, metaphorically and literally. Rather than attempting to find a natural level exit (assuming you do not have your Pocket Handbook of Level Exits about your person) you can simply throw yourself into a wall and hope for the best.
The process of noclipping
To successfully noclip, one must hurl oneself into a solid surface large enough to encompass one's entire mass with enough force to pass though the object as if it were intangible. The amount of force needed depends on the current stability of the level, with it being far harder to noclip in an stable level. Should this fail, do not be discouraged, try a few times on multiple surfaces.
The dangers of noclipping
Noclipping works by exploiting the changeable and unstable nature of levels. Due to the possibility of the reader being in a situation where time is limited, the physics will not be expanded on here. When noclipping, one can observe themselves falling through the void until they hit and pass into another level. This passage of time can vary from instantaneous to lasting two or three seconds. Very rarely, one will not have enough momentum to reach the next level, or some other variable will not be favourable. This results in the unlucky wanderer being stuck in the void, falling endlessly. If this accurately describes your predicament: don't panic. There is an extremely low chance of one falling into another level, to put the odds in simple terms; it will not happen. The advisable course of action would be to search your person for a firearm or blade of some sort, otherwise you will be here for a very, very long time.