Self-transcendent perception occupies a distinctive and contested position within the depth-psychology corpus, designating those moments in which the ordinary boundaries of the self — its salience, separateness, and ego-centricity — are suspended in favor of an expanded, connective, or unified mode of apprehending reality. The empirical literature, most systematically surveyed by Yaden and colleagues (2017), frames these states as a ‘unitary continuum’ spanning mindfulness, flow, awe, peak experience, and mystical encounter, unified by decreased self-salience and heightened felt connectedness. This phenomenological cluster is grounded neurobiologically in oxytocin release, vagal tone, and theory-of-mind networks. Against this relatively recent scientific architecture, the perennial philosophical traditions represented by Plotinus and Sri Aurobindo articulate a more metaphysically ambitious account: for Plotinus, authentic self-knowing dissolves the subject-object dyad altogether, merging the seer with the Intellectual-Principle; for Aurobindo, supramental perception replaces the ego-centric standpoint with a cosmic instrumentation in which sensation, thought, and feeling arise as ‘waves from the same cosmic immensity.’ The Jungian line, represented through the transcendent function and individuation literature, introduces a third inflection — self-transcendent perception as the functional outcome of integrating unconscious material, a symbol-mediated movement beyond the ego’s fixed horizon. These three positions — empirical-psychological, metaphysical-perennialist, and analytic-psychological — constitute the primary axes of tension structuring the concordance.