How does the relationship between a Guru and disciple, as explained by Baba, relate to the development of patience and faith? Please use the gem and stone analogy.

In Chapter 19, Baba explains that a powerful Guru primarily expects strong faith and the courage of patience from a disciple. He illustrates this with an analogy: just as a gem and a stone are both worked on by a whetstone, a Guru's guidance is applied to all disciples. However, the outcome depends on the disciple's inherent qualities. A disciple possessing innate faith and patience, like a gem, becomes a 'brilliant jewel' under the Guru's polishing. In contrast, one lacking these qualities, like a stone, may only become smooth but will never gain the gem's luster. This powerful analogy shows that a disciple's own commitment to patience and faith is the critical element for true spiritual transformation under a Guru's guidance.