[The author investigates the nature and function of affective cognition through connaturality in Thomas Aquinas. Its modulations are disclosed in the human attraction to happiness, in emotions and their moral significance, in the affective virtues (fortitude and temperance), and in the gifts of the Holy Spirit. Finally, the article notes some convergences between the thought of Aquinas and Bernard Lonergan concerning conversion and intentionality, both epistemological and existential.]