People have long believed in karma. They have believed that what you put out into the world will be returned to you. I certainly believe that there is quite a bit of truth to the karma bit. Even before I had known the word "karma" I tried to follow some of the best advice regarding happiness: "Do unto others as you would have them do unto you." Spread happiness and happiness will return to you. Not only does helping others make others feel good, but it is a fantastic strategy for ensuring your long-term happiness.