To me it seems to be about heroin abuse.
"Don't fix your eyes on a fix you rely on.
Fixed her eyes on a fix" Is a drug reference, obviously. "There's life in your veins. These needles are chains to hold you down." Would have to do with shooting up, and "When the light starts to burn" is referring to lighting a candle to heat up the spoon used to melt the heroin.
To me it seems to be about heroin abuse. "Don't fix your eyes on a fix you rely on. Fixed her eyes on a fix" Is a drug reference, obviously. "There's life in your veins. These needles are chains to hold you down." Would have to do with shooting up, and "When the light starts to burn" is referring to lighting a candle to heat up the spoon used to melt the heroin.