Karma Kagyu practice on the Six Yogas of Naropa. At the Anuttarayoga Tantra level of practice, the principal iṣṭadevatās of the lineage are Dorje Pakmo, Hevajra and Cakrasaṃvara. While one of the distinguishing characteristics of the Karma Kagyu is its emphasis on meditative practice, all forms and levels of Buddhist history and philosophy are also taught, most notably the shentong branch of Madhyamaka philosophy. The supreme lama of the Karma Kagyu is the Karmapa, who always presides as lineage holder once he has reached his majority and received all the necessary training and dharma transmissions. From the death of one Karmapa until
Karma that it makes karma as violable, contingent and unable to address the problem of evil. Arthur Herman states that karma-transmigration theory solves all three historical formulations to the problem of evil while acknowledging the theodicy insights of Sankara and Ramanuja. Some theistic Indian religions, such as Sikhism, suggest evil and suffering are a human phenomenon and arises from the karma of individuals. In other theistic schools such as those in Hinduism, particularly its Nyaya school, karma is combined with dharma and evil is explained as arising from human actions and intent that is in conflict with dharma. In nontheistic religions