Karma is different from person to person. If it is, you reap what you sow, then yes, I believe karma exists. I view karma as a blessing and a curse, merged together. You can sow bad seeds or good seed in your life as well as others lives and good (blessing) or bad(curse), they all have a consequence. So if you go around sowing hurt and despair (curses,evil,ect), you too will be faced with hurt and despair when it catches back up to you. I am a believer in God and God is who directs this said "karma". Good karma, to me, is being blessed and spreading blessings. Bad karma is beings cursed and/or spreading curses. Many people who have "bad luck" say they have bad karma because it is as if they are cursed.