‘Wall’ is about being in a self-destructive mood where everything feels pointless. You know nothing good can come out of punching a wall, but at the same time you’re so down that you don’t see what bad it could cause to get your emotions out.
The poem ‘Loss of trust’ is a story about having friends that have a different world-view than regular people, which you typically put up with. In short, they be crazy, okay? The piece is about them finally drawing the final straw and doing something unforgivable and you letting go of them.