Hatha yoga postures come in numerous forms. For a beginner, states the historian of religion Mircea Eliade, these "asanas" are uncomfortable, typically difficult, cause the body shakes and typically unbearable to hold for extended periods of time. However, with repetition and persistence, as the muscle tone improves, the effort reduces and posture improves. According to the Hatha yoga texts, each posture becomes perfect when the "effort disappears", one no longer thinks about the posture and one's body position, breathes normally per "pranayama", and is able to dwell in one's meditation ("anantasamapattibhyam"). The "asanas" discussed in different Hatha yoga texts vary significantly. Unlike
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