Ritual of Chüd

Bill Denbrough first battled It with the Ritual with advice that was given to him by Maturin. The ritual is a psychic battle in which the two forces duel with their wits. The children believe that the metal silver has supernatural abilities, as seen in numerous monster movies. Because the children believe it, it becomes real and is a chief weapon used in the ritual. Because Beverly Marsh is good with a slingshot, they injure It the first time when Beverly shoots a chunk of silver into Its skull. The group thinks that they killed It, but they can’t be sure, so they make a pact to return to Derry should It ever return. It was finally destroyed in the second Ritual of Chüd by the adult Bill Denbrough, Richie Tozier, Beverly Marsh, Eddie Kaspbrak (although he was killed by It) and Ben Hanscom.

http://stephenking.wikia.com/wiki/Ritual_of_Ch%C3%BCd

All things considered, there’s one huge and interesting aspect of the book that Muschietti has omitted entirely. The thing is, It sort of lives in a different dimension, a kind of metaphysical plane. The kids have to learn a special ritual (called the Ritual of the Chüd) to ultimately win. This is something they experience as children and then fully realize as adults, but it’s noticeably and entirely missing from the 2017 adaptation.

https://www.yahoo.com/lifestyle/apos-expect-sequel-204000988.html

Sorry, but I also think that watching movies is almost total waste of time , but here you can see how Mr. King needs this kind of external inspirations.

In Insomnia it would seem that he has also not invented those Bald Little Doctors by himself; these seem to come from  4 kumaras.

HOWDY

https://en.wikipedia.org/wiki/Ch%C3%B6d

Chöd (Tibetan: གཅོད, Wylie: gcod lit. ‘to sever’), is a spiritual practice found primarily in the Nyingma and Kagyu schools of Tibetan Buddhism (where it is classed as Anuttarayoga Tantra). Also known as “Cutting Through the Ego,”, the practices are based on the Prajñāpāramitā or “Perfection of Wisdom” sutras, which expound the “emptiness” concept of Buddhist philosophy.

According to Mahayana Buddhists, emptiness is the ultimate wisdom of understanding that all things lack inherent existence. Chöd combines prajñāpāramitā philosophy with specific meditation methods and tantric ritual. The chod practitioner seeks to tap the power of fear through activities such as rituals set in graveyards, and visualisation of offering their bodies in a tantric feast in order to put their understanding of emptiness to the ultimate test.