Is there a way to understand the course of karma?

Is there a way to understand the course of karma?
Sri Sri Ravi Shankar: There is no one standard to measure it. Jains had put Krishna in hell because he created many wars. Then they saw his good deeds and put him in heaven. It is best to do karma according to the intellect. An action which inspires you with enthusiasm and energy, even if it has flaws, is worth doing. Leaving your karma by sitting idle is inappropriate. There is some flaw even in the best of the action. For instance, a teacher earns his salary by teaching students. If children were born wise there would be no need for teachers. A doctor’s job depends on someone’s illness. Lawyers would not be required if there were no quarrels. Their well-being depends on the disharmony and fights of others. So, in every interaction, you will see some flaw. If you focus on the flaws, you will not do any work. Put your attention wherever there are positive qualities. There is no big or small work - every work is respectable.