GR translation: even this far out of it

[Mike Jing]

V622.14-26   Through the flowing water, the holes of the old Hohner
Slothrop found are warped one by one, squares being bent like notes, a
visual blues being played by the clear stream. There are harpmen and
dulcimer players in all the rivers, wherever water moves. Like that Rilke
prophesied,

              And though Earthliness forget you,
              To the stilled Earth say: I flow.
              To the rushing water speak: I am.

       It is still possible, even this far out of it, to find and make
audible the spirits of lost harpmen. Whacking the water out of his
harmonica, reeds singing against his leg, picking up the single blues at
bar 1 of this morning’s segment, Slothrop, just suckin’ on his harp, is
closer to being a spiritual medium than he’s been yet, and he doesn’t even
know it.

What exactly does "even this far out of it" mean here?
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