First, I love that clip with Clapton. I had watched it previously and it is indeed remarkable because when you see him live he rarely speaks, at least not in sentences :-)
It's funny, so many of the things you wrote, for example about Dylan and Coltrane, are things I've thought and said too -- on a lot of this we are really on a very similar wave length. I also see that too about being able to tap into your true self, that is how so many people with marginal voices are able to make great music. They are authentic, real, soulful -- however you want to describe it.
That's more difficult than it sounds -- Lately, I've been feeling pretty burned out on the platform. Your nudging is tempting me to release some chapters of fiction I wrote a while back -- I'm going to think it over this weekend.
Anyway, back to keeping it real and Clapton, that made me think of a great example of someone who is in touch with his inner essence. Check this out, it's so great.