Like gravity, the laws of karma have an effect on your irrespective of your knowledge of it. There are three fundamental laws of karma:
First Law :: Law of Harvest
Second Law :: Law of Lag Time
Third Law :: Law of Multiplier Effect
These three laws of karma influence all that you attract – people, events, wealth and happiness. The moment you set an action, the laws are put in force, and you realise the effects of your action as and when the conditions are conducive for it to mature.