Whatever you see is an appearance, and the reality is brahman. Consciousness alone is the reality. In third step alone, non duality is achieved. Brahman itself is appearing in all these forms just like a rope is appearing as a snake. So everything that we experience in day to day lat kar karma means every transaction in this world, eis a brahman,. Whatever is done in this world is actually an appears to be these things. That is the message of the 20 fourth verse.
Swami Sarvapriyananda talks on Verse 24 from Chapter 4 of the Bhagavad Gita.