Plotinus called it the One. Parmenides called it Being. Śaṅkara called it nirguna Brahman. Heidegger called it das Nichts. Maimonides and the Kabbalistic tradition called it Ein Sof. Pseudo-Dionysius called it the divine darkness beyond all attribution. This appendix argues that these traditions converge on a single structural condition — the absence of internal distinction — encountered under three descriptive aspects. Singularity (as oneness) presents the condition under the contrast with mult
