Lyric discussion by Valhalla4413 

Cover art for Brighter Side of Grey lyrics by Five Finger Death Punch

To me it sounds more like a memoir to a loved one such as his kid. Pretty much like he's realized life is short and it can end at any given moment. he wants whoever he wrote it for to know how much he cared for them, and for them to know he's still with them should his light be extinguished.