Nirmanakaya is the fully awakened state of being in the world. Its action is like the moon reflecting in a hundred bowls of water. The moon has no desire to reflect, but that is its nature. This state is dealing with the earth with ultimate simplicity, transcending following the example of anyone. It is the state of "total flop" or "old dog". You destroy whatever needs to be destroyed, you subdue whatever needs to to subdued, and you care for whatever needs your care.