Dune: Prophecy S01e04 Webrip

This is the centerpiece of Bene Gesserit power. In the far future (Dune: Part Two), we see Lady Jessica undergo this.

Episode 4 serves as the mid-season pivot. While the first three episodes established the chessboard—The Sisterhood vs. The Emperor vs. The Great Houses—this episode is about the pieces moving into checkmate positions. The title refers to several characters undergoing metaphorical (and in Valya’s case, potentially literal) rebirths through pain, decision, and revelation. dune: prophecy s01e04 webrip

Desmond Hart (Travis Fimmel) seizes control of the assembly. He admits to the killing, framing it as a necessary execution of a "thinking machine" user. Using his mysterious "burning powers," he incinerates leaders of the resistance and overambitious aristocrats, effectively terrifying the Great Houses into submission. This is the centerpiece of Bene Gesserit power