I rarely pay attention to the sun, but most of us probably don't, do we? It's more or less unchanging and far too distant to do much good as deity or timepiece. Plus all that heat, that light, that (traditionally) masculine energy has always left me, at least, a bit uneasy.
But the moon--dark, cold, changeable, and so close as to affect our blood, our mood, the tides, the sowing, the harvest... I don't know what that means; I don't know of its deeper significance, but in a world with little material left for faith, for optimism, for selflessness, well. I think this particular celestial being, so close as to have seen all the centuries of our cruelties, our weaknesses, our selfishness, and our power-grabs serves as a good sounding board, carrying our frustration and heartbreak with her, turning her face from us as she does whatever dark magic necessary to preserve our own survival.