Skill in moral life entails cultivating an understanding of the Buddhist concept of karma, patterns of moral causality that are thought to govern all human transformation. Although karma literally means “action,” the principle of karma concerns the connection between the quality of an act and the nature of the consequences that follow from it. Actions of a particular quality give rise to consequences of a corresponding kind, and this is thought to be a law inherent in the nature of things. …

What remains constant across a wide variety of interpretations is the thought that all acts generate consequences that shape the character of the actor. Not all acts are thought to be productive of karma, however, because karma is restricted to those done with volition, intention, or purpose. Moreover, changes in human lives brought about by the karmic consequences of an intentional act are thought sometimes to follow immediately from the act and sometimes to arise over time. This idea is extended beyond the range of a person’s present lifetime to the point that the quality of a person’s acts governs the form that a future rebirth will take. Karma and rebirth are thoroughly intertwined in Buddhist thought, and the combination of these two teachings more than any other set of moral ideas serves as motivation for moral action. …

The fact that what becomes of a person is based on the qualities of actions undertaken makes moral decision making central to Buddhist practice. If the goal is to become something in particular – a wiser, more compassionate, more enlightened person – then the actions that have the power to generate that state will need to be skillfully chosen and enacted with a disciplined mind. Buddhist texts therefore frequently link mindfulness to the practices of morality, thereby connecting morality with meditation. Śāntideva, who goes so far as to say that “the perfection is the mental attitude itself,” writes extensively on “guarding awareness,” because only by diligently shaping one’s mind will acts conducive to negative karma be eliminated. So he writes: “If I let go of the vow to guard my mind, what will become of my many other vows?”