The rain and wind, the rain and wind, raved endlessly.
On me the Summer storm, and fever, and melancholy
Wrought magic, so that if I feared the solitude
Far more I feared all company: too sharp, too rude,
The opening line is one, short, startling sentence, with the repetition of “rain and wind” and the violence of “raved endlessly”. Note that “rain” and “raved” are  assonant . The reader is immediately drawn in and curious. 
 Some readers might be reminded of the storm scenes in  King Lear  and the disturbing impact on the main character and the audience. In the play the raving elements unleash madness. Here it is a quieter internal conflict. 

Melancholy