Is Kindness More Powerful Than Karma?

Imagine the power you possess, the positive affect you can have on the world, just by being kind. Who knows, the kindness you show to strangers might actually save your life one day. Call it karma, call it paying it forward, call it being a Good Samaritan. It's all good.

What is the worse thing that could happen if we treated all people with solicitude and humanity?  I don't know, but I consider this the beginning of my journey to find out.