Kṛṣṇa concludes the sixteenth chapter by giving Arjuna a standard for decision-making. He says: “Let the scriptures (‘Śāstra’) be your authority in determining what should be done and what should not be done.” We should not rely on our own confused impulses or the changing opinions of society. Scripture acts like the manufacturer’s manual for the human body and soul. It tells us how to operate our lives so that we don’t break down. By following the ‘Śāstra-vidhāna’ (scriptural regulations), we stay on the divine path. Acting on our own whims (‘Kāma-kārataḥ’) only leads to failure and confusion. This verse emphasizes the importance of objective spiritual guidance. Our senses and minds are limited and often biased. Therefore, we need the timeless wisdom of the Gītā and other sacred texts to act as a lighthouse. When we align our daily actions with these eternal principles, our life becomes a successful sacrifice.