Im in the middle wot this one. I believe that things happen for a reason and if you do something wrong you will eventually pay for it later. Though I dnt believe it completly because then what would children have dne to die of cancer and terable disease.
I strongly believe in Karma. Just like the Newton's laws that say, for every action, there's an equal and opposite reaction, I believe that in karma, everything you do in your life has an equal and opposite reaction.