By channeling the raw discarding power of Mind Over Matter, you can continuously pitch cards to untap your mana-producing permanents while triggering Curator of Mysteries. Ordinarily, Curator of Mysteries would just let you scry 1 when you cycle or discard, but Eligeth, Crossroads Augur completely breaks this interaction by turning every single one of those scrys into a direct card draw. This creates a self-sustaining engine that fuels its own discard costs, letting you rip through your entire deck to generate near-infinite mana and draw triggers.