Advaita Vedanta is a Hindu-tradition of textual exegesis and philosophy and a Hindu sādhanā, a path of spiritual discipline and experience. In a narrow sense it refers to the scholarly tradition belonging to the orthodox Hindu Vedānta tradition, with works written in Sanskrit, as exemplified by the Vedic scholar and teacher (acharya) Adi Shankara ; in a broader sense it refers to a popular medieval and modern syncretic tradition, blending Vedānta with Yoga and other traditions and producing works in vernacular.