There is a constant migration of souls between the worlds.

Almost without recognizing it, we are faced with what must be the largest migration of souls across frontiers since the refugee treks which followed the end of the Second World War.

That summer image of the black-tailed godwit fits after all because each of these stories in some way involves a flight from greyness, a migration of souls, and an endless search for moments that can be fixed in memory as talismans against despair.