"Snow" serves as a metaphor for cocaine and heroin, but also for a "blank canvas" representing a fresh start.
Anthony Kiedis wrote the lyrics as a reflection on his past struggles with drug addiction and the difficult process of starting fresh. Red Hot Chili Peppers - Snow
Flea and Chad Smith provide a steady, pulsing groove that anchors Frusciante's "busy canvas" of sound. "Snow" serves as a metaphor for cocaine and