Sant Mat, literally “the teachings of the saints,” is best understood as a current of North Indian devotional and mystical spirituality that gradually took shape rather than as a religion founded at a single point in time. Its roots lie in the medieval period, when currents of bhakti (devotional religion), Sufism (Islamic mysticism), and yogic traditions such as the Nath school converged in northern India. Between roughly the thirteenth and seventeenth centuries, a series of poet-saints articulated a path centered on direct inner experience of the Divine, devotion to a formless God, and a rejection of rigid ritualism and sectarian boundaries. These figures spoke in the vernacular rather than in elite sacred languages, making their teachings accessible to ordinary people and emphasizing an interiorized spirituality over external observance.

Within this broad milieu, certain sants stand out as especially formative for what later came to be called Sant Mat. Namdev, Kabir, Ravidas, Pipa, and Guru Nanak are frequently regarded as key exponents of a nirguṇa (formless) devotion that stressed remembrance of the Divine Name (Naam), the importance of a living spiritual guide, and the primacy of inner realization. Their teachings often highlighted the “Word,” “Naam,” or “Shabd” as a divine current, and they called for ethical living and social reform alongside contemplative practice. Although these saints predate any formalized use of the label “Sant Mat,” their work provided the doctrinal and experiential foundation upon which later lineages would build.

A more distinct and self-conscious formulation of Sant Mat as a path of inner light and sound emerged later, particularly through the figure of Tulsi Sahib of Hathras. Tulsi Sahib is remembered for explicitly teaching meditation on inner light and sound and for using expressions such as Surat Shabd Yoga to describe the union of the soul with the inner sound current. This movement toward systematization reached a new level with Soami Shiv Dayal Singh of Agra, often regarded as the primary architect of modern Sant Mat. Drawing on earlier Sant currents and Tulsi Sahib’s circle, he articulated a detailed inner path involving ascent through spiritual regions by means of Surat Shabd Yoga, under the guidance of a living Satguru and supported by a disciplined ethical life, including vegetarianism and abstention from intoxicants.

From Shiv Dayal Singh’s work grew the Radhasoami movement, which became a major Sant Mat lineage and gave rise to several branches and centers, including those at Agra and Beas. These and related Sant Mat lineages share a common core: devotion to one formless Supreme Being, recognition of the Divine as inner Shabd or Naam (sound current) and Jyoti (light), and the conviction that a living spiritual master is necessary for initiation and guidance on the inner journey. Over time, various teachers and organizations have presented this path as a universal, non-sectarian “science of spirituality,” emphasizing personal transformation through meditation on inner light and sound rather than adherence to dogma or formal conversion. Through this gradual historical unfolding, Sant Mat has come to be known as a distinct yet fluid tradition, rooted in the medieval saints and expressed in multiple lineages that continue to transmit the path of inner light and sound.