The Upanisads are summarized in the Vedanta-sutra, and the Vedanta-sutra is still again explained by the Srimad-Bhagavatam, by the same author. This is the process. So the Bhagavatam is the essence of all Vedic knowledge: Revision history
Diff selection: Mark the radio buttons of the revisions to compare and hit enter or the button at the bottom.
Legend: (cur) = difference with latest revision, (prev) = difference with preceding revision, m = minor edit.