Pseudo-Dionysius the Areopagite, a 5th or 6th-century theologian, profoundly influenced Christian mystical theology. Rooted in both Neoplatonism and the teachings of the Church Fathers, his works like The Divine Names and Mystical Theology explore God’s transcendence and inexpressibility. Through both affirmative (cataphatic) and negative (apophatic) theology, Pseudo-Dionysius presents a path to understanding God’s infinite mystery, making him a pioneer of mystical thought in both the East and West.
