Essentially, karma means moving life from compulsive reaction to conscious action.  

You have no choice about what the world does to you. But what you make out of it is entirely yours – this is Karma.

No matter what kind of karma you gathered in the past, this moment’s karma is always in your hands.

Karma means both action and memory. There is no memory without action and no action without memory.

Karma means you are the maker of your life