This one's about drugs. When they perform it live, he mimes the act of shooting up. Plus there's all the biographical stuff mentioned above about the housing projects in Dublin, heroin in the city, etc. etc. etc. The metaphor for quitting drugs could apply to extricating yourself from any unhealthy situation in your life and making a new start. But in the strictest sense, this is a song about heroin addiction.
This one's about drugs. When they perform it live, he mimes the act of shooting up. Plus there's all the biographical stuff mentioned above about the housing projects in Dublin, heroin in the city, etc. etc. etc. The metaphor for quitting drugs could apply to extricating yourself from any unhealthy situation in your life and making a new start. But in the strictest sense, this is a song about heroin addiction.