10.6 'The seven great Rsis of yore', namely, those seven great Rsis like Bhrgu etc., were from the mind of Brahma in the cycle of the past Manu to perpetuate the creation permanently; and the four Manas called the sons of Savarna existed for the work of eternal sustentation. All creatures in the world are their progeny. So they are the generators of this progeny as also their sustainers till the time of Pralaya. These Bhrgu etc., and the Manus, derive their mental condition from Me. Their disposition is My disposition - they subsist on My disposition. The meaning is they follow My will.