It's after all a belief in the central sun, a species of monarch-worship, logical and consistent enough.
C4.8.Xenophon reveals himself and the Hellenic feeling with regard to war and its use.

The _pax Romana_ is anticipated in their minds.
C4.9.Hystaspas is rather like the sons of Zebedee or the elder brother of the Prodigal.
C4.12, fin.

Looks rather like a Greek joke.

But what is the joke?
C4.13-23.

Broad type of joke, but not unhealthy or prurient.