Dreams involving food often symbolize nourishment, abundance, and spiritual sustenance. In your dream, the old lady may represent wisdom or a guiding figure, suggesting that you are receiving valuable insights or blessings from a higher source. The act of praying over the food indicates a desire for gratitude and acknowledgment of the blessings in your life.

Eating the rice specifically could symbolize simplicity and sustenance, indicating that you might find contentment in the basic aspects of life. The idea that you are meant to bless her in return suggests a cycle of generosity and reciprocity, highlighting the importance of sharing your blessings with others.

Overall, this dream may be urging you to recognize the blessings you have received and encourage you to share your abundance with those around you. Consider reflecting on how you can contribute positively to the lives of others in your waking life.