Medieval doctrines
Though Scholasticism, with its doctrine of a separate and absolute God, was the crowning achievement of medieval thought, the period was, nonetheless, not without its pantheistic witness. Largely through Jewish and Christian mysticism, an essentially Neoplatonic pantheism ran throughout the age.
The only important Latin philosopher for six centuries after St. Augustine was John Scotus Erigena. Inasmuch as, in his system, Christ’s redemptive sacrific helps to effect a Neoplatonic return of all beings to God, Erigena can be said to have turned Neoplatonism into a Christian drama of fall into sin and redemption from its power. When Erigena said that, even in the stage of separation from God, God in his superessentiality is identical with all things, he advanced beyond a strictly Neoplatonic pantheism to some stronger form of immanentistic or monistic pantheism.
In the two principal writings of the esoteric Jewish movement called the Kabbala, known for its theosophical interpretations of the Scriptures, a mystically oriented system of 10 emanations is presented. A Spaniard, Avicebrón, a Jewish poet and philosopher, similarly presented a Neoplatonic scheme of emanations. And in Spain, Averroës, the most prominent Arabic philosopher of the period, represented an Aristotelian tradition that is heavily overladen with Neoplatonism. For Averroës, the active intellect in a human being is really an impersonal divine reason, which alone lives on when that person dies.
The German Meister Eckhart, probably the most significant of philosophical mystics, developed a markedly original theology. From his Stoic pantheism there arose his most controversial thesis—that there resides in every person a divine, uncreated spark of the Godhead, making possible both a union with God and a genuine knowledge of his nature. But Eckhart also distinguished between the unmanifest and barren Godhead and the three Persons who constitute a manifest and personal God. Thus, the system has similarities to both Stoic and Neoplatonic pantheism.
Cardinal Nicholas of Cusa, whose broad scholarship and scientific approach anticipated the coming Renaissance, continued the tradition into the 15th century. The “learned ignorance,” in which an individual separates himself from every affirmation, can have positive results, in Nicholas’ view, because each human being is a microcosm within the macrocosm (or universe), and the God of the macrocosm is thus mirrored in all of his creatures. He also held that, in reference to God, contradictions are compatible—his “coincidence of opposites” doctrine, in which God is at once all extremes. Clearly, Nicholas wished to ascribe to God both the categories of transcendence and those of immanence without distinction. But in fact he displayed some preference for the categories of the absolute, insisting, for example, that the creatures of the world can add nothing to God since they are merely his partial appearances. Despite this bias toward absolutism, and even to acosmism, Nicholas can be appropriately viewed as espousing an identity of opposites pantheism.