Prosélogion

Anselm's Proslogion is a short devotional-philosophical work composed in the late 11th century in which the author meditates on the nature and existence of God. It is best known for presenting the ontological argument, a reasoning that attempts to prove God's existence from the concept of God as 'that than which nothing greater can be conceived.

' The text combines deep personal prayer with rigorous philosophical reflection, aiming to move the reader toward greater understanding and love of God. Over centuries it has been a central text in medieval scholasticism and continues to be widely studied in philosophy of religion and theology.

Its influence extends through subsequent theological debate and commentary, including Anselm's own later works and medieval commentators.