Huayan thought approaches emptiness as the absence of any independent, self-existing essence in things, yet without denying the vivid presence of the world. All phenomena are said to be empty of svabhāva, which means that nothing stands alone or sustains itself from its own side. Each thing arises only through causes, conditions, and its relations with all other things. Emptiness, in this sense, is not a nihilistic void but the very condition that allows phenomena to appear and function. Because nothing is fixed or self-enclosed, reality can be understood as a fluid, relational field rather than a collection of isolated substances.

This vision is expressed through the image of Indra’s Net: an infinite web of jewels, each jewel reflecting all the others without obstruction. No jewel has existence apart from the net, and yet each jewel meaningfully manifests within the totality of reflections. Emptiness here is precisely what allows each jewel to contain and be contained by all the rest, since the lack of inherent nature removes rigid boundaries. The metaphor thus shows that every phenomenon both depends on and reveals the entire network of conditions that sustain it.

From this perspective, emptiness and the concrete world are not two separate realms but two aspects of a single reality. The interdependent world is emptiness in action, and emptiness is nothing other than this dynamic web of dependent origination. Huayan teachers describe this as the mutual interpenetration of all phenomena, where each thing includes all others and all others are present in each thing. Because phenomena are empty of fixed essence, they can interpenetrate completely without contradiction or obstruction. Emptiness, therefore, is understood as the very ground that makes the richness, complexity, and meaningfulness of the world possible.