In the Buddha's Words - Bhikkhu Bodhi [77]
These benefits, the enhancing conditions for spiritual development in the Dhamma, come about by the acquisition of puñña or “merit,” a word that signifies the capacity of wholesome action to yield beneficial results within the cycle of rebirths. According to the Buddha’s teaching, the cosmos, with its many realms of sentient existence, is governed at all levels by immutable laws, physical, biological, psychological, and ethical. The process by which sentient beings migrate from one state of existence to another is likewise lawful. It is regulated by a law that works in two principal ways: first, it connects our actions with a particular realm of rebirth that corresponds to our actions; and second, it determines the relations between our actions and the quality of our experience within the particular realm into which we have been reborn.
The governing factor in this process, the factor that makes the entire process a lawful one, is a force called kamma (Skt: karma). The word “kamma” literally means action, but technically it refers to volitional action. As the Buddha says: “It is volition (cetanā) that I call kamma; for having willed (cetayitvā), one acts by body, speech, and mind.”1 Kamma thus denotes deeds that originate from volition. Such volition may remain purely mental, generating mental kamma that occurs as thoughts, plans, and desires; or it may come to expression outwardly through manifest bodily and verbal actions.
It may seem that our deeds, once performed, perish and vanish without leaving behind any traces apart from their visible impact on other people and our environment. However, according to the Buddha, all morally determinate volitional actions create a potential to bring forth results (vipāka) or fruits (phala) that correspond to the ethical quality of those actions. This capacity of our deeds to produce the morally appropriate results is what is meant by kamma. Our deeds generate kamma, a potential to produce fruits that correspond to their own intrinsic tendencies. Then, when internal and external conditions are suitable, the kamma ripens and produces the appropriate fruits. In ripening, the kamma rebounds upon us for good or for harm depending on the moral quality of the original action. This may happen either later in the same life in which the action was done, in the next life, or in some distant future life.2 The one thing that is certain is that as long as we remain within saṃsāra any stored-up kamma of ours will be capable of ripening so long as it has not yet produced its due results.
On the basis of its ethical quality, the Buddha distinguishes kamma into two major categories: the unwholesome (akusala) and the wholesome (kusala). Unwholesome kamma is action that is spiritually detrimental to the agent, morally reprehensible, and potentially productive of an unfortunate rebirth and painful results. The criterion for judging an action to be unwholesome is its underlying motives, the “roots” from which it springs. There are three unwholesome roots: greed, hatred, and delusion.