Cleaning Karma is cleaning your mind: This may sound obvious, and it was obvious for me intelectually, but now I understand things more clear by experiment.
Of course that me, as a very dull being, will experiment such teaching only sometimes and at very ground levels. For example, sometimes your karma-vipaka will dictate that you will have a headache, and you will suffer with that; thats your "fruit" from previous actions, thats your vipaka; but now lets imagine that you, on that moment, are "noting" (like in vipassana meditation) every sensation with mindfulness and clear mind...the headache still be there but you wont be affected by it. There is no suffering. So, its like you just cleansed the karma causing such pain.
Sometimes the opposite will happen: for example,your good karma from previous actions will give you the opportunity of getting some free time to rest in a greeny place; but in that moment you let your mind think on something bad ("my girlfriend is cheating on me!" lol, i hope not
), then the greeny place is not so beautiful and you dont let yourself enjoy such a beautiful day. Why? Because of your toughts. Many times i find myself mad just because I am thinking on my job or in the economic situation of my country, etc. They are not useful toughts and when I am mindful of that, I will throw them away and get happy again.
Your reaction to what happens is the oportunity you have to "clean" (not real clean, like complete eradication) your karma. And a clear and mindful mind is the trick. A big trick by the way! I am mindful only a few times in a year!
Whats your toughts about what I said? Share your experiences