karma=justice system of inside world

Karma is the justice system of the world at a personal level.
”As you sow,so shall you reap” is the best way to explain Karma in short.
Sooner or later this law catches up with you.
If not in this lifetime,then in the next one.
Sounds like a science fiction movie.
One day this will be proved.
So how does one use this system effectively on a day to day basis ?
It is a matter of faith.
Just as virtue gives you strength,just as knowledge gives you power,understanding karma will give you a better sense of what choices to make so that you do more good than harm.
Karma is as important to study as any other self help subject,or subject of health and well being.