I know this is probably just a reach, but in the monster video he is just searching through his mind and reflecting on his past until he finds where slim shady has been held.
This is all great but around the cage i noticed all the pill bottles as a nod to relapse, but i cant help but feel like that was a metaphor for when he was searching for slim shady during his relapse era. He kept trying to tap into where he was and he got close but wasnt quite there.
Idk im probably wrong and it's really late here, but what do you think?
What are the smaller metaphors you picked up on.