Solutions for problems arising at the limits of science and philosophy require ontological grounding. Quantum Mechanics (QM) is increasingly called upon as a source of insight regarding such problems, but is not itself well-understood. The fact that QM has many conflicting interpretations for which ontological status is claimed demands a post-quantum theory which clarifies its meaning, settles the differences among its interpretations, and facilitates the analysis and solution of otherwise intractable problems. Herein described as Quantum Metamechanics (QMM), this theory is a meta-interpretative mapping of QM and its various interpretations into a supertautological description of reality, the CTMU Metaformal System. By incorporating the CTMU, a true ontic identity supporting the self-identification and self-existence of reality, QMM provides QM with a valid ontology in terms of which its various interpretations can be evaluated and synergized.