Lyric discussion by mackka 

Cover art for Hallelujah lyrics by Nick Cave and the Bad Seeds

You've pretty much got it Starfighter. It's just about leaving safety, being drawn towards temptation and eventually escaping it. Probably to do with drugs, but that's not necessary for an accurate interpretation. The 'Hallelujah' in the chorus is incredibly intriguing since it sounds so mournful, yet is a joyous word. I get the feeling that's the whole point.