I'm almost reluctant to see an anime adaptation of this cause I don't know how they're going to translate the fantastic monster art of this manga into animation.
@Snowave
I think they are telling her to bow and clap three times on the srine.
I don't know the full details about that but some of the videos about japan that I watch clap and bow three times when doing that in the shrine.
I just realized that this chapter has a really dark twist: Miko is basically doomed because the gods who can help her are SCARIER than the actual evil spirits.