 Tsongkhapa and his Geluk followers insist is that nothing exists on its own even conventionally; that interdependence is universal (Tsongkhapa 1988, 585). Therefore, we cannot ground conventions in any deeper foundation. The fact that there is nothing but groundless conventions—all the way up and all the way down—is another way of seeing why the ultimate and the conventional are not distinct from one another; the two truths are none other than two aspects of the same thing.