I've been struggling with a deep sadness lately that I can't exactly put my finger on. I think this is due to the fact that there is no single "on" on which to put my proverbial "finger"... whatever that means. It is a mist of shape-shifting feelings and reasons, which transforms into all sorts of causes and all sorts of effects. The main symptoms are the same as always... restless, restless, and restless. Craving for stillness, craving for motion. Craving for security, craving for upheaval and change. Craving for communication, craving for solitude. Craving, craving, and craving... yet another common symptom.
Melancholia is a better word for it. Everything has a tinge of the bittersweet to it. It is a great state for songwriting.