I don't believe in karma. I believe what the Bible says, that we reap what we sow. Yes they sound the same, but I trust the Bible, not man made philosophy.
Karma is a word that means "action" or "doing." There is good karma and bad karma and just plain old karma. Jesus said best, "As you sow so shall you reap." I have a feeling one of these days some bright boy or girl will decide DNA is what karma looks like. Karma makes the world go 'round!