Throughout the world, and encompassing all of the great religious traditions, repeating or singing a sacred name is a fundamental spiritual practice. For millions of people, whether Christian, Muslim, Buddhist, or Hindu, invoking a sacred name is an integral part of prayer and daily life.  This collection of writings by renowned Indian scholar, V. Raghavan, examines the lives and contributions of the main exponents of the tradition in India, including Mahatma Gandhi, and Guru Nanak, the founder of Sikhism.