Read the following passage and answer the questions that follow:

Poetry, as a mania - one of Plato's two higher forms of "divine" mania - has, in all its species, a mere insanity incidental to it, the "defect of its quality", into which it may lapse in its moment of weakness; and the insanity which follows a vivid poetic anthropomorphism like that Rossetti may be noted here and there in his work, in a forced and almost grotesque materialising of abstractions, as Dante also became at times a mere subject of the scholastic realism of the Middle Age.