The division of functions. Four rhetorical questions (μήτι… μήτι… τί δέ… οὐχί…) lead to a single conclusion. The sun does not undertake the rain's work, TERMAsclepius1 not the Fruit-bearer's2: each god or star keeps to its own function. The governing discipline is desire (to accept the differentiated order); the sustaining one is action.
Difference for the sake of unity. The upshot: the stars are "different (διάφορα), yet TERMcooperating (συνεργὰ) toward the same thing (πρὸς ταὐτόν)." Not despite difference but through it is the DOGMAone end reached: the specialization of the parts is a form of their co-working. Hence the implied moral: a human being, too, need not do "another's" work — it is enough to do one's own to serve the Whole (cf. 06-42 on fellow-workers).
Parallels. 06-42 (all cooperate to one end); TERMco-working; the doctrine of DOGMAthe unity of the cosmos; cf. Med. 7.19; 06-33 (each organ does its own). The image of divided yet concordant powers — the Stoic συμπάθεια (06-38).