Don't sell rocks seen the spectrum through the prisms
Rather than selling rocks (crack), he opted for a different shape, a prism, which gives him a wider and more panoramic view of existence and allows him to bypass the system.
Also a play on colors. Crack cocaine (rocks) are an opaque, usually white color. You can’t see through it and it stays one color. It’s banal and restricting compared to the prism; the latter offers far more color and opportunity as you can see the spectrum. Music > slinging, one offers multiple avenues of growth while other offers death or jail time.
He’s experienced the various paths (refractions) this life can take you, and he’s seen the light,
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