Lalwani talks about why Krishna has no duty to perform in the universe, yet he works for others' welfare in the 22nd verse of chapter 3 of Bhagavad Gita for happiness. Lord Krishna explains to Arjuna that bliss is one of God's energies, and he alone possesses it to an infinite extent. Though he is complete in himself, there is no need for anything outside of himself - but he accomplishes welfare through this work.