A radial tree visualizes the hierarchical structure of Buddha's teachings, branching from central concepts like the Four Noble Truths into detailed subtopics. The visualization uses D3's `d3.cluster` layout to arrange nodes in a circular pattern, with SVG paths and text labels. Interactive pan and zoom controls are implemented via `d3.zoom`, while nodes display at varying depths with adjusted font sizes to accommodate the dense hierarchy. The tree draws from a JSON data source depicting Buddhist philosophy concepts.