The Law of Karma

Surely everyone has heard every Word karma, or have even used it. It is a term of common form in the West. But do we really know what karma is? What means by karma in the Buddhist context? Are we more or less aware that everything we do has consequences? Karma is like the echo or how to play tennis in a wall fronton. What you move, send, or project, sooner or later returns, manifesting itself in different ways. That said, know of input that our actions can be healthy and report us happiness, or unhealthy and bring us suffering. Thus, the karma is characterized because it leaves a potential that occur sooner or later results in the future. Karma is formed by a set of seeds that we are spreading in each new now. Bring us a little closer to this concept.