From Tosches bio of Emmitt Miller: 
"And, of course, that is what all of this is - all of this: the  one song, ever changing, ever reincarnated, that speaks somehow from and  to and for that which is ineffable within us and without us, that is  both prayer and deliverance, folly and wisdom, that inspires us to dance  or smile or simply to go on, senselessly, incomprehensibly,  beatifically, in the face of mortality and the truth that our lives are  more ill-writ,  ill-rhymed and fleeting than any song, except perhaps  those songs - that song, endlesly reincarnated - born of that  truth, be it the moon and June of that truth, or the wordless blue moan,  or the rotgut or the elegant poetry of it. That nameless black-hulled  ship of Ulysses, that long black train, that Terraplane, that mystery  train, that Rocket '88', that Buick 6 - same journey, same miracle, same  end and endlessness." - Nick Tosches, Where Dead Voices Gather
Without Emmitt Miller would we have Hank Williams? 
You decide. Go here & here for rare Emmitt Miller medicine shows and songs.