Read it through once

“A poet must be earth’s ESSENTIAL king”, as Sordello asserts, and he is that by virtue of his exerting or shedding the influence of his essential personality. “If caring not to exert the proper essence of his royalty, he, the poet, trifle malapert with accidents instead-- good things assigned as heralds of a better thing behind”--he is “deposed from his kingly throne, and his glory is taken from him”. Of himself, Sordello says: “The power he took most pride to test, whereby all forms of life had been professed at pleasure, forms already on the earth, was but a means of power beyond, whose birth should, in its novelty, be kingship’s proof. Now, whether he came near or kept aloof the several forms he longed to imitate, not there the kingship lay, he sees too late. Those forms, unalterable first as last, proved him her copier, not the protoplast of nature: what could come of being free by action to exhibit tree for tree, bird, beast, for beast and bird, or prove earth bore one veritable man or woman more? Means to an end such proofs are: what the end?”