In Human Design, Sacral Authority is the decision-making strategy for Generators and some Manifesting Generators. It operates through visceral gut responses — an immediate "uh-huh" (yes) or "uh-uh" (no) in the body. The Sacral response is not mental or emotional; it is a physical sensation of either expansion (moving toward) or contraction (pulling away). Yes/no questions are the fastest way to access it.