Is it a mistake to write "Nature ceased to be consideres "as" a real living being?"

Question

I included a few more sentences. Thank you.

1) In the fourth stanza the poet suggests that in order to hear the voice of nature we should be in a state of inner emptiness almost like that of the mystics when they enter into communion with God.
2) This state of mind favours the poet’s inner perception, which he calls inward eye.
3) Thanks to his inner perception the poet’s physical loneliness turns into a moment of ecstasy, which he calls bliss of solitude.

Answer 1

You don't need "as" -- it's extraneous and makes the sentence wordy.

1. comma needed

2. OK

3. comma needed