After the thunderclap of 'I am Time,' Krishna turns practical. No more cosmic vision. No more philosophy. Just clear, direct instruction: 'Get up. Fight. Win. Enjoy the kingdom. These enemies are already dead by My hand — you are merely the instrument.'
The word 'nimittamatram' is the key to the entire Gita's teaching on action. An instrument does not carry the burden of results. A pen does not agonize over what the letter says. A bow does not grieve for the arrow it releases. Krishna is not asking Arjuna to become heartless. He is asking Arjuna to act without claiming ownership of outcomes that were never his to control.
Krishna addresses Arjuna as 'Savyasachin' — the ambidextrous archer who can draw the bow with either hand. It is a warrior's name, a fighter's name. By using it here, Krishna is calling Arjuna back to who he is. Not a philosopher agonizing on a chariot seat. A warrior. And warriors stand up.