Kenneth E. Kirk is regarded as the person who revived moral theology in the Anglican tradition in the early to mid-twentieth century. This article argues that a renewal of interest in mysticism, led especially by W.R. Inge and Evelyn Underhill in the first two decades of the twentieth century, was influential upon Kirk’s outlook, especially his association of moral theology with ascetic theology (or mystical theology), and linking of personal holiness with ethics. Kirk made prayer – especially contemplative prayer – and worship primary in the education of the soul, the forging of Christian character and therefore the creation of a moral agent.