The divine music of Keats's lines rang through Arthur's remark, and to the Frenchman's mind gave his passion a romantic note that foreboded future tragedy.
" If I might speak, Headmaster, " said Snape from the shadows, and Harry's sense of foreboding increased; he was sure nothing Snape had to say was going to do him any good.
What we are doing in the process is exchanging the pain of remembering the difficult past for a sense of foreboding around the future; the catastrophe we fear is going to happen has already happened.