Some of those ascetics lived upon air and some upon water. Some were devoted to the silent recitation of sacred Mantras. And some were engaged in purifying their souls by practising the virtues of mercy and the rest. And some amongst them were Yogins devoted to the Yoga-meditation. Some amongst them lived upon smoke only, and some lived upon fire, and some upon milk. Thus was, that retreat adorned with many foremost of twice born persons.