One of the most popular Asian classics for roughly two thousand years, the Vimalakirti Sutra stands out among the sacred texts of Mahayana Buddhism for its conciseness, its vivid and humorous episodes, its dramatic narratives, and its eloquent exposition of the key doctrine of emptiness or nondualism. Unlike most sutras, its central figure is not a Buddha but a wealthy townsman, who, in his mastery of doctrine and religious practice, epitomizes the ideal lay believer. For this reason, the sutra has held particular significance for men and women of the laity in Buddhist countries of Asia,...