Hatha yoga physical essence of life that was constantly dripping down from the head and being lost. These techniques sought to either physically reverse this process (by inverted postures like the "viparītakaraṇī") or to use the breath to force bindu upwards through the central channel. Other texts like the "Vivekamārtaṇḍa", "Goraksaśataka", and "Khecarīvidyā" also teach the raising of kuṇḍalinī. The aims of these practices were siddhis (supranormal powers such as levitation) and mukti (liberation). The only other texts older than the Hathapradīpikā to teach Hatha Yoga ̣mudrās are the "Shiva Samhita", "Yogabīja", "Amaraughaprabodha", and "Śārṅgadharapaddhati". The "Hatha Yoga Pradīpika" is one of
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