The Kagyu are a major Later Diffusion tradition of Tibetan Buddhism. The Kagyu trace their lineages back to the Mahasiddhas, the great tantric masters of medieval India. The Kagyu are known for their yogic practices, as well as the teaching of Mahamudra, or the “Great Seal.” The Kagyu tradition includes many different branches, such as the Karma, Drukpa, Drigung, Tselpa, Pakmodru, and others. The most influential leaders of the Karma Kagyu are the Karmapas, a tulku lineage associated with that Kagyu branch. In Bhutan, the Drukpa Kagyu tradition serves as the state religion. A follower of the Kagyu is called a Kagyupa.