Nancy Moore Goslee writes:
In Epipsychidion genre is far more elusive, but it seems to grow out of the reflexive difficulties in developing and sustaining the praise of this almost but not quite abstract figure of Emily. The most apt illustration of this reflexiveness in the poem is, surely, the speaker’s moment of despair as like Actaeon he turns on his own thoughts—thoughts he had been pursuing but that have now taken on their own momentum and have like hounds pursued and torn at him. (106)
Goslee, Nancy Moore. "Dispersoning Emily: Drafting as Plot in Epipsychidion." Keats-Shelley Journal 42 (1993): 104-19.