Krishna summarizes the entire preceding catalog of sacrifices. He confirms that all these various, multi-faceted types of sacrifices (evaṃ bahu-vidhā yajñā) are spread out or detailed extensively in the mouth of the Vedas/the Absolute Truth (vitatā brahmaṇo mukhe). He emphasizes a critical point: you must know (viddhi) that absolutely all of them (tān sarvān) are born of action or work (karma-jān). By fully comprehending this mechanical truth (evaṃ jñātvā), you will be liberated (vimokṣyase).