This article describes William Johnston's (1925–2010) ideas and works as a summary of a wider study about him. The volume of Fr. Johnston's production is quite large, with an astonishingly large international audience and popularity. At the same time, to make oneself a comprehensive view about his thoughts or to place him in the Jesuit map, it is hard to find more than book reviews and short articles about his writings.
Irish-born Fr. Johnston was a widely known figure in the field of Buddhist-Christian dialogue. He was able to adopt some of the current trends of the spiritual and religious meditative movements, and represented a form of Christianity that was open to Buddhism, especially in the 70s.
He made a lifelong journey to teach prayer and to update the mystical theology with the help of modern religious and psychological trends for the future times. In this article, I describe his main works and his way of being in dialogue with Buddhism. According to him, the goal of man, the true self, was a common denominator between religions. The role of Christ and Christianity among religions was central to him, for all religions mediate implicitly the Christ-reality. Mysticism was his way to see reality, although he himself was no mystic. His solutions to critical theological issues are shallow in places, which indicate an interest elsewhere. I conclude with comments on his label as perennialist.
