As if the atoms align there's a chance you phases through the wall but you have atoms ⚛️ so if them alignment is perfectly straight you phase the wall but don't end up in the backrooms so the atoms will stop phase leading you to a death in the walls unless your in a apartment and the backrooms is fictional with level 0 is a real place you can visit but some levels are fake to the atoms phase is actually real
This is called "Quantum Tunneling" it's where your quarks, protons and atoms align in such a space that you can noclip through it like a ghost. This is merely impossible on earth because of how our physics works on earth and how humans are. Another thing that stops us from quantum tunneling is the invisible forces which means atoms just... can't collide. Yes, it's true, you are on your phone and your fingers are actually not touching the phone... You're touching invisible forces. But it's super common on the sun or even stars like Rigel or Antares. So good luck even trying to do this as no one has ever done this a single water molecule deep.