[Avodah] moon and sun

[Moshe Y. Gluck]

R'n SP:
I would be interested in R' Zev's take on midrashic sources to the effect 
that animals sing shira to God (e.g., the midrash about the cows in Sefer 
Shmuel).  Once again, I understand these sorts of statements to mean that 
when we contemplate the beauty of nature and its workings we experience it 
as a form of song or poetry, not that animals literally and consciously 
sing.  The message is in our minds, not in the animals' actions.  Why can't 
the speaking of the moon be understood the same way?  The moon 'speaks' to 
us, i.e., it conveys a message to us because of what it symbolizes or the 
ways in which we relate to it associatively.
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I sometimes understand these midrashim and others like them (with admittedly
no textual basis for doing so), as referring to the Malachim who are charged
with the conduct of the sun, moon, animals, etc. Just as the Gemara makes
clear that the various nations have Sarim who are to some extant responsible
for/charged with/lead the conduct of the nations, and just as we have Chazal
telling us that every blade of grass has a Malach standing over it
commanding it to grow, so too it is possible that the sun and other
inanimate objects, as well as animate but unintelligent objects (like in
Perek Shirah), have Malachim associated with them, and it is those Malachim
who say Shirah and have the other interactions mentioned in the Midrash.

Thoughts?

KT,
MYG