Hatha yoga reverser, or to make breath flow into the center channel which forces bindu up. However, in later hatha yoga, the Kaula visualization of Kuṇḍalini rising through a system of chakras is overlaid onto the earlier bindu-oriented system. The aim was to access amṛta (the nectar of immortality) situated in the head, which subsequently floods the body. This goal is in contradiction with the early hatha yoga goal of preserving bindu. The "Hatha yoga pradipika" text dedicates almost a third of its verses to meditation. Similarly, other major texts of Hatha yoga such as "Shiva samhita" and "Gheranda samhita" discuss meditation.
Karma karma theories is the concept of reincarnation or the cycle of rebirths ("saṃsāra"). Rebirth is a fundamental concept of Hinduism, Buddhism, Jainism and Sikhism. The concept has been intensely debated in ancient literature of India; with different schools of Indian religions considering the relevance of rebirth as either essential, or secondary, or unnecessary fiction. Karma is a basic concept, rebirth is a derivative concept, so suggests Creel; Karma is a fact, asserts Yamunacharya, while reincarnation is a hypothesis; in contrast, Hiriyanna suggests rebirth is a necessary corollary of karma. Rebirth, or "saṃsāra", is the concept that all life forms go