We have invented, discovered as we were shaping it, and set free from Marc Richir's philosophy a fundamental element of comprehensibility regarding his phenomenology, which we have called ogkorhythm. The pertinence of this fundamental ogkorhythmic element is also to be found in its great problematic density, giving clarity to that which should be understood by space/time itself in contemporary French phenomenology and, in the context of this contribution, in the work of Max Loreau and Henri Maldiney. Our work mainly concerns the analysis of notions of inherent volume in the work of the former and of rhythm in the work of the latter. Rhythm and volume whose meaning is, in part, derived in the light of ogkorhythm.