Kṛṣṇa establishes a hierarchy among sacrifices. He says that ‘jñāna-yajñaḥ’, the sacrifice of knowledge, is superior to the mere sacrifice of material possessions. While giving money or goods to charity is good, understanding the truth of existence is far better. He explains why: “All sacrifices of work culminate in transcendental knowledge.” The ultimate goal of doing puja, giving charity, or performing duty is to wake the soul up. If you give a million dollars but remain in illusion, the result is limited. But if a small act leads to a ‘click’ of understanding, the result is infinite. Kṛṣṇa is telling Arjuna that the physical war he is fighting is meant to lead him to a state of wisdom. The ‘work’ is the classroom, but the ‘knowledge’ is the graduation. Every arrow he shoots should be aimed at deepening his understanding of his relationship with the Divine. Action is the fuel, but wisdom is the light.