Um, this song is utterly and completely about shooting heroin. I guess I will keep on typing because I have to have at least 50 words, but it is about shooting heroin. I mean, think about it. He talks about Candy running through his veins, addicts call it candy. He wants to get struck, like by a needle. Then he is talking about energy rushing through him. He's talking about heroin. There are no more words that need to be typed.