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 in the current life, as well as the nature and quality of future lives - one's "saṃsāra". "Karma" is the executed "deed", "work", "action", or "act", and it is also the "object", the "intent". Wilhelm Halbfass explains karma (karman) by contrasting it with another Sanskrit word "kriya". The word "kriya" is the activity along with the steps and effort in action, while "karma" is (1) the executed action as a consequence of that activity, as well as (2) the intention of the actor behind an executed action or a planned action (described by some scholars as metaphysical residue left in