Karma is a concept of Hinduism which describes a system in which beneficial effects are derived from past beneficial actions and harmful effects from past harmful actions, creating a system of actions and reactions throughout a soul's (jivatman's) reincarnated lives, forming a cycle of rebirth. The causality is said to apply not only to the material world but also to our thoughts, words, actions, and actions that others do under our instructions.

Karma is an ancient Indian concept of action, work, or deed, and its effect or consequences. In Indian religions, the term more specifically refers to a principle of cause and effect, often descriptively called the principle of karma, wherein individuals' intent and actions (cause) influence their future (effect): Good intent and good deeds contribute to good karma and happier rebirths, while bad intent and bad deeds contribute to bad karma and bad rebirths. In some scriptures, however, there is no link between rebirth and karma. Karma is often misunderstood as fate, destiny, or predetermination.