 According to Gorampa, the tetralemma is a tool that is used to investigate the ultimate status of appearances. Through the logic of this fourfold negation, one cultivates a conceptual understanding of the ultimate that is taught, and then, through subsequent meditative practices, one eventually cultivates a direct, nonconceptual realization of the actual ultimate truth. In short, the logical reasoning involved in the fourfold negation is implemented by ordinary persons in order to understand what the ultimate truth is like, but logic alone is not sufficient to arrive at a direct realization of the ultimate.