Read it through once

After such imaginary discourse, the passenger in his fancy would dig, and dig, dig--now with a spade, now with a great key, now with his hands--to dig this wretched creature out. Got out at last, with earth hanging about his face and hair, he would suddenly fan away to dust. The passenger would then start to himself, and lower the window, to get the reality of mist and rain on his cheek.