This is fully understandable when one examines the whole conceptual framework of Meister Eckhart. He considered himself to be in harmony with the teachings of the Christian church to the same degree that he assumed Aquinas to be. Eckhart did not want to take anything away from the meaning of Christianity or add anything to it. The Christian truths were his truths. Only he wanted to look at them in a different way than had Thomas Aquinas, for instance.
Reason understands the laws of things, that is, spirit in nature.
It can also raise itself above nature and, in the spirit, grasp from one side the divine essence underlying all nature. But in this way it does not achieve an immersion in the full essence of God. A higher truth must meet it halfway. This truth is given in the Scriptures. Scriptures reveal what a human being, unaided, cannot attain.