The right hemisphere stands as one of the most generative and contested constructs in the depth-psychology library, treated not merely as an anatomical division but as a fundamentally distinct mode of being in and attending to the world. Iain McGilchrist, whose two major works dominate the corpus, argues with sustained empirical and philosophical force that the right hemisphere constitutes the ‘master’ of experience — the ground of global attention, holistic perception, embodied reality-testing, and genuine openness to otherness — while the left hemisphere serves as a capable but partial emissary whose local, sequential, and re-presentational operations must remain subordinate to right-hemispheric primacy. Julian Jaynes, approaching from a different angle, anticipates McGilchrist in locating synthetic, spatial-constructive, and contextualising functions in the right hemisphere, linking this to his bicameral mind thesis. The critical tension running through the corpus concerns the consequences of right-hemisphere suppression or damage: McGilchrist documents how such loss produces delusions, hallucinations, anosognosia, confabulation, and a retreat to the left hemisphere’s self-confirming logic — a pathology he diagnoses not only clinically but culturally. The right hemisphere emerges, across these voices, as the locus of truth-contact with reality, creativity, empathy, sustained attention, and the capacity to hold ambiguity — capacities the corpus regards as foundational to psychological and civilisational health.