Kadam

Atisha's lineage, the Old Kadampa School

Key scriptural sources include: The Graded Path for the Three Types of Individuals: Lamp of the Path of Enlightenment (byang chub lam sgron), Key Instructions of the Practices of Sixteen Spheres (thig le bcu drug), and similar texts. Tsongkhapa and his lineage, the New Kadampa School, emphasizes philosophical doctrine.