This rather short text by Eckhart has been available in a critical edition for decades, but has been rarely read and studied, regarded by its editor as a mediocre piece of the young Eckhart. It is, indeed, a strangely looking work, almost entirely a cut-and-paste piece from Thomas Aquinas' Golden Chain. A close study of Eckhart's commentary, however, gives insights into his reception of the Patristic tradition, his dealing with Thomas' choice and provides a masterpiece of Eckhart's teaching on prayer. He himself held his work in high regard and used it when writing trinitarian homilies