James Filler, author of 'Heidegger, Neoplatonism, and the History of Being', shares insights into the principles of relational ontology, asserting that relationships are fundamental to understanding reality. He explores the philosophical conflict between Parmenides and Heraclitus and its relevance to modern science. Their conversation meanders through the complexities of Eastern and Western Christianity, critiques of substance ontology, and the dynamic interplay of ancient philosophy with contemporary ethics. Filler's upcoming work promises to deepen these discussions.