ap. of the three principle Vedas: Rig, Yajur and Sāma
in B., knowledge of three important things, viz. අනිත්යය, දුඃඛය අනාත්මය: i.e., impermanancy, sorrow (of all existence), and the non-existence of a permanent self. This is one of the chief doctrines of B., and the chief study of all B. ascetics.