Lyric discussion by serge fabrizio 

i know it might seem obvious, but my best guess is it's about life, and how you shouldn't get caught up in the finer points of religion and just live your life, it'll work out in the end. There's no way you'll ever know what's beyond this existence, until you get there, so just let it go and enjoy your life.

the name of the song and the video also gave me the impression that it was about letting things go, the old man following the boy and finding his posessions in the field, and how it ends with him just wearing white, and smiling in a relieved way, he let go of his demons.

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