... falling on my head like a new emotion ...

Michael P. Stevens at Pedestrian Happiness offers a link to an article about saudade that is valuable for a few reasons: it makes a plausible distinction between saudade and nostalgia - saudade longs for a future, impossible though it might be; suggests a possible historical context for the genesis of this feeling; explores cognate terms in other languages like Basque, Spanish & Brazilian ... most of all, perhaps, encourages speculation upon the notion that we do evolve emotionally, that there are new feelings that in time will be named ...