This chapter explores the key themes, influences, and subsequent reception of the works and thought of one of the most prominent mystical thinkers and theologians of the High Middle Ages, Meister Eckhart. In particular, it looks at how Eckhart, as a “bilingual thinker” in both the scholarly Latin and vernacular German of his day, translated not only verbally but also conceptually medieval High Scholasticism into the inner life of the soul's union with God. Thus, in his writings, the philosophical and theological insights of Scholasticism become dynamic moments in the soul's journey into its inner ground, which it shares with the very divine Godhead itself.