 In Eriugena’s conceptions of God, the cosmos and human nature, there is an extraordinarily bold emphasis on infinity. God is infinite and manifests Himself infinitely in His theophanies; the causes themselves are infinite; the created cosmos too would be infinite were it not for the Fall; finally, human nature is essentially unbounded and infinite. The Holy Scriptures too have a kind of infinite richness: Sacrae scripturae interpretatio infinita est, II.560a. Employing an original simile, Eriugena claims that the number of interpretations of Holy Scripture is like the innumerable colors in a peacock’s tail (IV.749c). Human understanding and learning are also endless. Eriugena emphasizes the lack of limit and inherent transcendence not just of human nature but also of the whole of nature. Nature as a whole is an infinite series of theophanies. This conception of God as “more than infinite” and as the “infinity of infinities” is Eriugena’s most significant contribution to philosophy, one that attracted both the attention of medieval mystics and later of German Idealists.