Well I love this song. But I think its about his girlfiend breaking up with him and hes feelin really bad and hes talkin to her in the song. Then tht he thought he found someone tht god thought was good for him and he wants to get back together. Tht hes thinkin about suicide. And tht "6 feet aint so far down" means tht hes ready to go six feet in the ground(being put in a casket and lowered I nthe ground).