Saudade

I've just come across the Portuguese word "Saudade". The Wikipedia entry states that:

"It describes a deep emotional state of nostalgic longing for an absent something or someone that one loves. Moreover, it often carries a repressed knowledge that the object of longing will never return."

Apparently it is no precise translation but it also appears that many languages have a similar concept, perhaps the closest being the Welsh term "Hiraeth".

An echo a time before the Fall, maybe.