Step from the road to the sea to the sky
Here, he uses the metaphor of the sea to the sky to describe the feeling of getting high. He starts off on the road (feeling normal), takes the drug and hits the sky (feeling high), then crashes back down to the sea (when the high wears off). This destructive cycle is part of the reason Anthony tried to quit using.
Also some Christ imagery here. Jesus walked on the road because in some ways he was just a normal man, but he also walked on water because he was God’s son. Then he rose up to the sky into heaven.
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