Using the analogy of the stone and the gem, what does Baba illustrate about the role of a Guru and the disposition of a disciple?

The analogy of the stone and the gem, found in Chapter 19, powerfully illustrates the dynamic between a Guru's guidance and a disciple's inherent readiness. Both the stone and the gem are rubbed on a whetstone, symbolizing the equal effort a Guru applies to all disciples. However, the outcome differs based on the material's nature: 'the stone remains a stone, but the gem becomes a brilliant jewel.' This metaphor teaches that while the Guru provides the polishing process, the disciple must possess the inherent quality, or receptivity, of a gem to truly shine. Even a powerful Guru expects the disciple to bring 'strong faith at the Guru’s feet and the strength of courage which is patience' to be transformed.