|Chapter 2: Contents of the Gita Summarized|
yavan artha udapane
tavan sarveshu vedeshu
All purposes served by a small well can at once be served by a great reservoir of water. Similarly, all the purposes of the Vedas can be served to one who knows the purpose behind them. Explanation:
Krishna here uses the technique of analogy to make a point. This is a powerful technique in logic (nyaya) where in a complex subject is explained by drawing a parallel to some thing that is relatively simple and easy to understand. In a typical village there are several wells, each serving a specific purpose. Some are used for washing, some for drinking and some for bathing. However if there is a river close by, then the purpose of all these wells and more can be achieved by this river. Similarly, the ultimate purpose of all the Vedas is to understand and serve Krishna, the Supreme Personality of Godhead. All the rituals, knowledge, worship etc. are given to engage the person at their level of advancement and then gradually elevate to the ultimate level of God consciousness. By the performance of buddhi yoga one does not need to perform the rituals of the karma-kanda, the knowledge of the jnana-kanda and the worship and meditation of the upasana kanda. Buddhi yoga is the great reservoir of water that obviates the needs of these limited usage wells or karma, jnana and upasana. This verse gives conclusive proof to the Krishna Consciousness movement. Srila Prabhupada points out, "In this Age of Kali, most of the population is foolish and not adequately educated to understand Vedanta philosophy; the best purpose of Vedanta philosophy is served by inoffensively chanting the holy name of the Lord. Vedanta is the last word in Vedic wisdom and the author and knower of the Vedanta philosophy is Lord Krishna; and the highest Vedantist is the great soul who takes pleasure in chanting the holy name of the Lord. That is the ultimate purpose of all Vedic mysticism." So far Krishna has been giving various alternatives to Arjuna. In the next verse He will explain the specific level that Arjuna is qualified to act.
Please read the Sanskrit Verse and the Prabhupada's Purport.