A Companion to St Bonaventures The Souls Journey into God. St. Bonaventure of Bagnoregios The Souls Journey into God is a masterpiece of thirteenth-century Scholasticism. Unfortunately no comprehensive analysis of Bonaventures seminal treatise exists that is accessible to contemporary audiences. Reinvigorating the medieval tradition of critical commentary for the twenty-first century, this book introduces readers to basic Scholastic concepts and arguments by expounding and evaluating Bonaventures speculative system. Dillard also highlights the relevance of Bonaventures thought for contemporary philosophical theology.