To clarify his shocking statement about transcending the Vedas in the previous verse, Krishna provides a beautiful analogy. If you have access to a massive, overflowing lake or a flood of fresh water (samplutodake), a small, limited well (udapāne) becomes practically unnecessary. You can still use the well, but all the purposes of the well are already contained in the lake. Similarly, a self-realized soul (brāhmaṇasya vijānataḥ) who has directly experienced the Absolute Truth has automatically achieved all the various rewards promised by the specific rituals of the Vedas.