However, if you decide beforehand that you are going to kill the damn spider that is living in the garage and stomp on him with malice aforethought, you will experience the karmic ramification of an action that is laced with hatred and aversion(remember, one of Three Poisons). If you understand karma as one moment conditioning future moments, you can see the interdependent chain of cause and effect. When your mind is clouded by aggression, this will generate particular effects. When your mind is occupied by peace, this will generate its own particular effect. this effect will be on your own mind moments and on your behavior that, in turn, affects others.