This verse from the Bhagavad Gita talks about the interconnectedness of all living beings, nature, and actions. It starts by explaining that all living beings depend on food for their existence. Food, in turn, comes from the rain that nourishes the crops and sustains life. The verse then goes deeper into the cycle, stating that rain itself arises from sacrifice.

In ancient Vedic culture, sacrifice (yajña) was considered essential for maintaining harmony in the universe. Through sacrifice, people showed gratitude to the gods and nature for providing sustenance. This act of sacrifice was believed to invoke blessings from the divine and ensure the continuity of life-sustaining elements like rain.

Furthermore, the verse emphasizes that sacrifice arises from action (karma). In the context of the Gita, karma refers to selfless actions performed in accordance with one's duty and for the greater good. These actions, done with a spirit of sacrifice and devotion, contribute to the well-being of society and the world at large.

Overall, this verse teaches the importance of understanding our interconnectedness with nature, acknowledging the role of selfless actions and sacrifice, and recognizing the divine order that governs the universe.