Fascinating. The connection between noos and nostos gives new meaning to the imperative that you shouldn't forget where you came from. Our thoughts and sense of self are so intimately tied to our homeland that to be cut off from one leads to the death of the mind. The plays in nicely with the discuss in 24 Hours about Achilles as a plant cut down before fully ripe. He chooses not to return to his roots. Once cut off, he wilts and denies, but his kleos, his epic/lyric existence, survives and flourishes, having different, immortal and universal roots. I wonder if this idea of switching roots/homelands has been studying as a sort of plant grafting, transferring one branch to a different tree, as a metaphor for immortalizing.