This work investigates the nature of divine grace as the primary mechanism for human salvation and the restoration of the soul to its proper relationship with God. Saint Thomas Aquinas, a 13th-century Dominican friar and Doctor of the Church, utilizes Aristotelian logic and patristic tradition to construct a systematic framework for understanding how grace operates within the human will. He argues that grace is not merely a legal acquittal but a transformative habit that elevates human nature to participate in the divine life.

Scholars and theologians regard this text as a foundational component of the Summa Theologiae, noting its high degree of intellectual rigor and systematic precision. Readers frequently observe that the prose requires significant familiarity with scholastic terminology to fully grasp the nuances of the arguments presented.