So even in Death’s strong house there is something left,
a ghost, a phantom – true, but no real breath of life.
– Homer
The Iliad, Book 23, lines 122-123. The ghost of Achilles’s dead friend Patroclus visits him in a dream, asking him to complete his funeral and bury him so that he may pass into the world of the dead. In this comment Achilles realizes that there is something of the person that remains after death.