This paper proposes a theological grounding for the possibility of metaphysics. After a brief critique of the seeming contemporary revival of analytic philosophy as characterized by linguisticism, the two main sections give a Christological and ultimately Mariological foundation for the possibility of metaphysics. The Christological section starts with the role of the second person of the Trinity in creation, and subsequently points to the hypostatic union as ensuring that creation is therefore accessible to the human mind. It also implies that (...) reality is fundamentally of a personal nature, and that personal knowledge can be relatively unproblematically acquired by other persons. The Mariological section starts from Plato’s Diotima as a prefigurement of Mary, and subsequently portrays Mary as the perfect metaphysician, guaranteeing the possibility of metaphysics as an enterprise of natural reason. Doing justice to the critique of an at times overly naive pre-modern metaphysics can then be done by advocating a Christological and Mariological turn for the Copernican revolution, e.g. fully taking into account the historicity of being and thinking. In conclusion, Mary as the handmaid of the Lord is analogous to metaphysics as the handmaid of theology, in a relationship of a loving daughter, mother and bride. (shrink)