1 Dwalin: Wull if poetry is nae guid for wuzzards, whut is?
2 Kyros: There’s ominous chanting. Preferably with a conjuring circle with powerful anti-magical wards.
3 Dwalin: Oh? Und whut is that for?
3 Kyros: For any demons or Balrogs that I summon.
4 Dwalin: Tae protect ye from them?
4 Kyros: To protect them from me.

Also known somewhat more prosaically as a magic circle, a conjuring circle is a ritual space with a boundary that forms a protective barrier between a summoner (standing outside the circle) and the summoned (which appears within the circle). You can also put one around yourself if you need protection from entities that are running loose in the wild.

I must admit that most of my knowledge of these things comes from roleplaying games, not the real world mystical practices on which they are based. For those who wish to explore or perhaps even try a real world version, there are of course instructions on the web.