Standing on the bare ground, ----my head bathed by the blithe air, and uplifted into infinite space, -----all mean egotism vanishes. I become a transparent eye-ball. I am nothing. I see all.
Questions:
1) Please identify the author and the title of the work.
2) Please briefly interpret this passage.
3). What rhetorical device of transparent eye-ball.
4) Emerson said he want to become a transparent eye-ball, what king idea did he want to express？