Jonathan Lear's account of Aristotle and the human person as a systematic understander can shed light on how Thomas Aquinas sees the passage from contemplation of worldly things to the contemplation of the divine essence. In grasping the essences of mundane particulars, the systematic understander ‘spiritualizes’ them, and simultaneously comes to grasp both self and God. This account of contemplation can further help illuminate Aquinas's understanding of the nature of the theological task as an exercise of systematic understanding of the particulars from which the scriptural narrative of signs and examples is constructed. Finally, the theologian's own path as a systematic understander is retraced for his or her students in sharing the fruits of contemplation through teaching.