http://en.wikipedia.org/wiki/Karma
In Buddhism, karma (Pāli kamma) is strictly distinguished from vipāka, meaning "fruit" or "result". Karma is categorized within the group or groups of cause (Pāli hetu) in the chain of cause and effect, where it comprises the elements of "volitional activities" (Pali sankhara) and "action" (Pali bhava). Any action is understood as creating "seeds" in the mind that will sprout into the appropriate result (Pāli vipaka) when met with the right conditions. Most types of karmas, with good or bad results, will keep one within the wheel of samsāra, while others will liberate one to nirvāna.
Buddhism links karma directly to the motives behind an action. Motivation usually makes the difference between "good" and "bad" actions; but included in the motivation is also the aspect of ignorance such that a well-intended action from an ignorant mind can subsequently be interpreted as a "bad" action in the sense that it creates unpleasant results for the "actor".
Other causal categories
In Buddhism, karma is not the only cause of everything that happens. The commentarial tradition classifed causal mechanisms governing the universe as taught in the early texts in five categories, known as Niyama Dhammas:[33][34]
Kamma Niyama—Consequences of one's actions
Utu Niyama—Seasonal changes and climate
Biija Niyama—Laws of heredity
Citta Niyama—Will of mind
Dhamma Niyama—Nature's tendency to produce a perfect type
Buddhism links karma directly to the motives behind an action. Motivation usually makes the difference between "good" and "bad" actions; but included in the motivation is also the aspect of ignorance such that a well-intended action from an ignorant mind can subsequently be interpreted as a "bad" action in the sense that it creates unpleasant results for the "actor".
Other causal categories
In Buddhism, karma is not the only cause of everything that happens. The commentarial tradition classifed causal mechanisms governing the universe as taught in the early texts in five categories, known as Niyama Dhammas:[33][34]
Kamma Niyama—Consequences of one's actions
Utu Niyama—Seasonal changes and climate
Biija Niyama—Laws of heredity
Citta Niyama—Will of mind
Dhamma Niyama—Nature's tendency to produce a perfect type