Lyric discussion by AkibaRed 

Cover art for Dragonfly lyrics by A-Ha

This sounds a lot like it could be about the singer promising another person that they will stay together through thick and thin, and that they will always be there for said person. In my opinion, this sounds like a parent telling their child that they will remain with them despite what happens later on, and that the child needn't worry; he/she should "just fly" as a "dragonfly". One of my favorites from Lifelines.

My Interpretation