This chapter's epigraph is from a famous poem by the English poet William Butler Yeats. The poem is about the power of the spirit world, and it describes a group of spiritual beings who have come together to seek enlightenment. The spirit world is a place where people and things come together. It is also a place that is beyond the reach of human beings. Yeats' poem is a reference to the fact that there are "people beyond people" and "skys beyond skies" . In this passage, we learn that the "spirit world" is not the same as the "real world" , and that the real world is "beyond people and people". The poem also reveals that the group of spirit beings has come together in order to "teach them a lesson". The two elders explain that they have been summoned to the "mystery realm" by some people, who have summoned the spirit monsters. The elders are puzzled by the appearance of the monsters, but the two elders decide that they should stop the "Mysterious