If you meet anyone from the Scarlet Devil Mansion, ask them; they'll tell you about that.

All kinds! There's mountain, wind, misfortune, harvest, that one god of Makai, the unnamed, all-powerful Dragon God and of course, my god! I don't know much about mine, though...

Marisa and I are usually the ones who go out and solve the problems that bother Gensokyo every so often, so we fight all kinds of people, even gods!

(Reimu sounds quite proud of that last part.)