Pseudo-Dionysius the Areopagite

Pseudo-Dionysius the Areopagite was a Christian theologian and philosopher of the late 5th to early 6th century. He is best known for his writings that merge Christian doctrine with Neoplatonic philosophy. His works, including "The Celestial Hierarchy" and "The Mystical Theology," explore the nature of God, angels, and the spiritual realm, emphasizing the importance of indirect knowledge and the ineffability of God. Although his real identity is uncertain, he greatly influenced medieval theology and mysticism, and his ideas shaped the understanding of divine hierarchy and the relationship between the spiritual and material worlds.