I have to admit that when I was in school I always thought John Keats was 'a bit of a weirdo' to put it bluntly.
Anyone who can't enjoy something beautiful because it will (soon) be over has to question his sanity. If I see/hear a nightingale sing, it reminds me how wonderful creation is, regardless of what "we" try to do to it, often in the name of progress. I don't sigh and mope because the nightingale is going to fly away like Mr. Keats would.
I guess this is what comes of supporting Cardiff City over the years. The good times are usually followed (very swiftly) by the bad times, a perfect pastiche on life itself, even down to the strange characters who come long for a while only to be replaced by others along the way.
It can be twee to say to those mourning the loss of a loved one that the good times will follow, or that 'time will heal.' Let alone to be like Keats and warn picnicking families of their ultimate demise!
Nevertheless I have to warn friends and relatives that the sight of Cardiff City sitting atop the Championship may yet be followed by leaner times. But let's enjoy the good times while they last, and ignore the worldview of Keats and his ilk.