"Iss like sinkin in2 thi sky on thi other side ov thi Erf wif..." — Iain M. Banks quote meaning

Iss like sinkin in2 thi sky on thi other side ov thi Erf wifout goin thru thi whole fing furst. Iss like flotin in2 thi erf & thi sky @thi time, becomin a line not a point, plumin thi depths & assendin thi hites & then branchin out like a tree, like a plane tree, like a hooj bush interminglin wif every bit ov thi erf & thi sky, & then iss like every 1 ov those bits isnt juss a bit ov erf or a molicule ov air eny more, iss like ol ov them is suddenly a littl system ov ther own; a book, a library, a persin; a world ... & yoor connectid wif ol ov it, ignorin barryers, like u r a brain sell deep in thi grainy grey mush ov thi brain all closed in but joined up 2 loadsa uthir sells, awash in ther communicashin-song & set free by that trapt meshin.