This is the comfort of friends, that though they may be said to die, yet their friendship and society are, in the best sense, ever present, because immortal.
So you've got these auspicious motifs, the cranes, the peacocks and the immortals, but then also these stories from literature and that nod to the performing arts with the costumes they're wearing.
The legend goes further: if any person becomes the rightful owner of all three, then he or she will become “master of Death”, which has usually been understood to mean that they will be invulnerable, even immortal.