When the Supreme Lord appeared as Kūrma, a tortoise, he became sleepy when his back was scratched by the edges of the stones on heavy, rotating Mount Mandara. May you all be protected by the winds caused by the Lord's breathing at that time! Even up to the present day, the ocean tides follow the Lord's inhalation and exhalation by coming in and going out, which only appear to be the tides. Actually the Lord in the form of Kūrma churned the Milk Ocean. Devatās were the cause in name only. Similarly the churning of the ocean of the Vedas to produce the Bhāgavatam was done by the Lord alone. Vyāsadeva only repeated it. That is expressed in this verse. By the scratching caused by the edges of stone of the very heavy Mandara Mountain when it was rotated, Kūrma became sleepy. May the breathing of that sleepy Lord protect you. The Lord as Mohinī, taking the nectar obtained from the churning, cheated the demons and gave it to the devatās, his devotees. Similarly the Lord has churned the Vedas and produced the Bhāgavatam containing the nectar of bhakti. Cheating the demons, may he give the nectar to you! This is in the form of a benediction to the devotees. Because of following a few moments of the breathing of Kūrma, the oceans continually ebb and flow. “But the oceans move because of the tides, not because of the Lord’s breathing.” The tides are only a pretext. Actually it is the Lord doing this.