How does the narrative of the lady feeding a dog illustrate Sai Baba's philosophy on service and divine unity?

The incident powerfully illustrates Baba's core teachings on service and non-duality. Chapter 9 explains that when the lady lamented her inability to serve him, Baba clarified that her act of giving bread to a hungry dog was a direct service to him, stating, 'Consuming that bread of love, I became completely satisfied.' This demonstrates his principle to 'give bread to the hungry first.' Furthermore, by declaring 'I have oneness with him [the dog],' Baba reveals his divine unity with all creation. This story, as narrated in Chapter 9, serves as a practical lesson in his instruction to 'renounce the sense of difference' and perceive the divine in every being, transforming a simple act of charity into supreme worship.