Reverend Mother Gaius Helen Mohiam is a character in Frank Herbert's Dune. She is a senior member of the Bene Gesserit sisterhood and the Emperor's Truthsayer. She administers the gom jabbar test to Paul Atreides -- the test of humanity that determines whether a person can override instinct with conscious will.

What Is the Gom Jabbar Test?

Mohiam places Paul's hand in a box that inflicts escalating pain while holding a poisoned needle to his neck. If he withdraws his hand, she kills him. The test distinguishes humans, who can override instinct, from animals, who cannot. Paul endures longer than any male subject before him.

What Is Mohiam's Role in Dune?

Mohiam is the architect of the Bene Gesserit breeding program that produced Paul. She ordered Jessica to bear a daughter who would be married to a Harkonnen heir, producing the Kwisatz Haderach. Jessica's defiance in bearing a son disrupted the plan.

What Does Mohiam Represent?

Mohiam represents institutional power and the cold calculation of organizations that treat individuals as genetic material in service of long-term plans. She is neither evil nor good. She is an instrument of a system that operates on timescales beyond individual concern.

Can You Talk to Reverend Mother Mohiam?

You can chat with Mohiam on HoloDream, where she is available as an AI companion. She is imperious, precise, and will test you before she respects you.