I just realised that the blog ccut off the last part of the Dylan lecture so here's the missing conclusion:

All this turns then in the gathering together in the extraordinary image of the door in the flame

I gaze into the doorway of temptations angry flame

And every time I pass that way I always hear my name

This is both the unredeemed memory of the hotel door from which his name is called behind which he is offered  what Eliot called "the bitter tastelessness of shadow fruit"  but also it represents a new awareness that he is known to God, that the very hairs on his head are numbered,

And every time I pass that way I always hear my name

as George Herbert says, in  a poem on the same theme:

But as I rav'd and grew more fierce and wilde,
                                At every word,
    Methought I heard one calling, Childe :
                                And I reply'd, My Lord. (George Herbert The Collar)

We began with the ancient footprints that Dylan sensed in Rome, in that moment of double vision;

Ancient footprints are every where…

 But foot prints are only footprints, they are as it were a testament of absence, there is no possibility of their return. In Every Grain of Sand Dylan confesses and gives full poetic expression to the possibility of presence , the ancient footprints have become ancient footsteps and even though he honestly confesses the experience of absence too, we know that the God who spared Abrahams son on Highway Sixty-one is walking with him on his journey now, and  we are reminded, by the gift of Dylan's music, that he is walking with us too

I hear the ancient footsteps like the motion of the sea
Sometimes I turn, there's someone there, other times it's only me.
I am hanging in the balance of the reality of man
Like every sparrow falling, like every grain of sand