The song is about a dying relationship which both parties feel letting go is not the best option. It's reminds of of the fun times in the beginning, how u gradually fell in love. The second verse talks about the strain and the present unhealthy occurrences in the relationship. It's impossible to believe how far they fell. Sometimes hanging on seems like a good option but it's not. most times we are scared to start over so we try to glue a shattered glass, we forget it can't look beautiful once glued it's forever gonna be ugly and rough. The song says it all the best thing is to let it, let it be, be yourselves. Forget about each other let the ashes fall, leave it to the breeze.