I do not think he ever cared to rid himself of them.
The next description is not an illustration of man by means of Nature.
It is almost the only set description of Nature, without reference to man, which occurs in the whole of Browning's work.

It is introduced by his declaration (for in this I think he speaks from himself) of his power of living in the life of all living things.

He does not think of himself as living in the whole Being of Nature, as Wordsworth or Shelley might have done.

There was a certain matter of factness in him which prevented his belief in any theory of that kind.

But he does transfer himself into the rejoicing life of the animals and plants, a life which he knows is akin to his own.