Nature of karma

Bhishma explains the nature of karma to Yudishtra. Karma is
that which you can do with your body, your mind or your
words. What is thought of in the mind does not afect anyone
else, except the one who thinks. Our thoughts have an effect
on us. If we keep envious thoughts in our minds, or if we
harbour jealousy, it will only lead to negative emotions like
anger against others. So our negative thoughts lead to
negative emotions and that afects our physical and mental

Our words can hurt others, but if they decide to ignore
harsh words, then they are not going to be afected. But it is
our deeds that afect others the most, said Goda
Venkateswara Sastrigal in a discourse. Now coming to Yudishtra himself, what is the action he has undertaken that has caused him worry? He has gone to war and killed many, including his own relatives. But this should not make him unhappy, because Duryodhana could never have been as just a ruler as Yudishtra. So for the sake of the people, Yudishtra had to fight and should not regret his actions.

There can be no greater sacrifice a man can make than to
risk his life for the welfare of others, and this is what a
warrior does. So Yudishtra has done the right thing. The
problem in Yudishtra’s case is that he thinks he has erred.
As for the fruits of our karma, they will definitely come to
us although there is no telling when this will happen. Every
calf finds its mother and doesn’t mistake any other cow for
its mother even if its mother is in the midst of thousands of
other cows. As surely as this will the fruits of our actions
reach us.