The Moniker creatures gain power (and potentially size) the more scared you are: feeding on fear. As it gets scarier though, you're likely to become more & more afraid! If you show that you're unafraid, that makes it powerless and it'll vanish. [see: Background page>Creatures>Moniker]
Amorphous, dream-like/other-worldly dialogue here which I somewhat prototyped in Chapter 1-06.