Consequently , they become confused and desperate. However, the Buddha was able to explain why people differ in their circumstances and why some are more fortunate in life than others. The Buddha taught that one's present condition, whether of happiness or suffering, is the result of the accumulated force of all past actions or karma. Defination of Karma Karma is intentional action, that is, a deed done deliberately through body, speech or mind. Karma means good and bad volition .
Every volitional action is called Karma.
In other words, Karma is the law of moral causation. It is action and reaction in the ethical realm. It is natural law that every action produces a certain effect. So if one performs wholesome actions such as donating money to charitable organizations, one will experience happiness. On the other hand, if one perform unwholesome actions, such ass killing a living being, one will experience suffering.