The concept of unio mystica stands out of the more distinctive aspects of H.R. Mackintosh's theological work. Generally regarded as one of the leading English-speaking theologians of the first third of this century, Mackintosh and his innovative insights have since fallen into comparative neglect. Interestingly, the concept of the unio mystica seldom appeared as a theme on its own, apart from his programmatic article ‘The Unio Mystica as a Theological Conception’ (1909). Rather it served as a leitmotif which recurred at important points in his christology and soteriology. This essay will survey the meaning and importance Mackintosh gave to the unio mystica, and the various ways the concept functioned in his theology. Hence the first part will reconstruct his understanding of union with Christ, while the second part will examine three main applications of the concept: participatory christology, justification, and the Christian life. We will also explore some of the potential the concept may have for contemporary theology in a few concluding remarks.
The Unio Mystica of Teresa of Avila: two classical presentations in the light of psychology
