I found the passion in aerosol cans and hands clapping
Back spins, microphones and cats rapping

from Cannibal Ox – A B-Boy's Alpha Lyrics on Rap Genius

Meaning

The four main pillars of hip-hop are breaking (b-boying), graffiti, DJing, and MCing

Vast is referring to being completely swept up by all the elements of hip-hop in his youth (aerosol cans = graffiti, hands clapping = breaking/DJing, backspins = breaking, microphones, rapping = MCing). This may have saved him violence

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