How does the story of Ratanji illustrate the theme that 'no one has unmixed happiness,' and how does Sai Baba's philosophy contrast with this worldly concern?

The theme that 'no one has unmixed happiness' is vividly illustrated through Ratanji's story. Chapter 14 portrays him as a man with vast wealth, property, and a charitable reputation, yet he was constantly tormented by the inner worry of not having a son. This demonstrates that material prosperity and worldly success do not guarantee complete happiness. Sai Baba's philosophy offers a stark contrast to this worldly attachment. He is quoted as saying, 'In the world, someone belongs to someone... but here, no one is ours; our only one is Allah.' This statement emphasizes a detachment from worldly bonds and possessions, suggesting that true peace lies in singular devotion to the divine rather than in fulfilling worldly desires like having a son.