The Vedanta-sutra (1.1.1) states, athato brahma jijnasa: "Now is the time to inquire about Brahman - The absolute truth, the transcendental, spiritual nature."
The first aphorism in the Vedanta-sutra is athato brahma jijnasa. In the human form of life one should put many questions to himself and to his intelligence.
"All purposes that are served by the small pond can at once be served by the great reservoirs of water.  Similarly, all the purposes of the Vedas can be served to one who knows the purpose behind them." - Bhagavad Gita