The third Karmapa, Rangjung Dorjé (1284–1339), composed on a variety of topics and is considered a preeminent figure not only in the Kagyü lineages but also those of Severance, or Chö (gcod), and Nyingma. He composed treatises that became the foundation for studies by generations of meditators and scholars in the Karma Kagyü tradition and beyond, ranging from the massive commentary on the highest yoga tantras, The Profound Inner Principles (Zab mo nang don), to condensed profound supplications such as our Aspiration Prayer of Mahamudra, which stands on its own as a deep contemplative practice.