Bhagavad Gita Ch. 10 “Yoga of the Opulence of the Lord” Verses 27, 28 & 29
The lecture discusses the concept of churning of the milky ocean and the puranic examples of Great Weapon Vajra; all desires fulfilling Kamdhenu Cow, Lord of desires Kandarpa, Vasuki Snake as well as Uchhaisrava the flying horse and Airavat the four-tusked elephant that came out of the milky ocean during the great churning.