Lord Twig said:
Why? Why do the Orlanthi need another god instead of Yelm to be the sun?
First, Yelm IS the sun. Are the Orlanthi just ignorant?
Yelm is the Celestial Orb and the Emperor. Yelmalio is the brightness of the Sky Dome, Ehilm is the purifying solar fire, and Elmal is the light and positive warmth of the sun.
You can say that Yelm is more the archetype sun than the other entities I mentioned, but there is not a monopoly to sun or storm (Storm Bull after all is a storm god, too, even though Orlanth is the god of storm).
Lord Twig said:
Is Aldrya not the mother of plants because she is an Elf goddess? Do they need a different plant god as well?
Aldrya is not a grain goddess. Ernalda is "mother of the Grain Goddesses", which is saying that the various grain and land goddesses are aspects of her (among the Orlanthi). Yelm is married to the earth goddess (Dendara, also the good wife), Lodril is married to the earth goddess (Oria, also earth mother), and Orlanth is married to Ernalda (earth queen). Eiritha is the earth goddess of Prax (if you want to avoid going into the "spirits and gods" debate), mother and wife of Waha.
Lord Twig said:
Maybe they should just make up another god for the Red Moon as well?
The Lunars have been busy doing lots of red moon goddesses (and gods). And the Orlanthi of Sylila have done just that (with the help of the Conquering Daughter), their Sky Bear god (Odayla/Orlanth) has a Moon Bear aspect.
Lord Twig said:
What is wrong with just letting Yelm be the sun and making the Orlanthi deal with it?
According to what I have read the Orlanthi view Yelm as the sun and he ruled in Heaven before Orlanth came.
[snip]
Two different myths, the exact same events. No different gods for the same thing.
The Hindu religion recognizes a couple of great deities and lots of lesser ones which are reflections of those. Similar in Glorantha. Different aspects or local variations of a deity go about doing a great deed (like slaying a dragon to end the draught), interweaving with a number of other locally known deities. So it can be Vadrus who slays Enkoshons, Orlanth who slays Aroka or Barntar who slays some other dragon, each of whom had swallowed the fertilizing waters (as Blue Woman to Vadrus, Heler to Orlanth, etc).
What you preach is the God Learner approach. It works where they are, for the period chosen for MRQ Glorantha. Still, the benighted locals insist in having their own names, and it takes the glorious God Learners (or wiser-than-thou player characters) to prove them their errors.
It is sort of uncanny that their methods still help them resist the Machine God.