It makes all the sense in the world! In the sense that we can't just stay in a feeling now when everything is changing so fast! If you're a normal human being there's no way that optimism and pessimism can't replace each other. We can't change the world just by focusing on the good and ignoring the bad. A philosopher of yours, of course, from antiquity, seemed to say that the world exists only in our imagination. My mind refused to understand that, or I understood that there was an infinity of worlds, according to each man's perception... Plato? I learned that decades ago, I don't remember, no disrespect.
Something strange is happening to me... I don't like googling information I knew and have forgotten or am no longer sure of. I like to err more than I like to search. A little crazy, isn't it?
Thank you for your good wishes, I hope at least for a recovery, even if it will not be very fast!