How does the story of Amir Shakkar illustrate the principle of faith in the face of contrary external conditions?

The account of Amir Shakkar in Chapter 22 serves as a powerful illustration of unwavering faith. He suffered from rheumatism, yet Baba's 'remedy' was to stay in a damp, cold, and filthy Chavadi for nine months—conditions that would logically worsen his ailment. The text states that 'externally, all conditions were contrary.' However, Amir's 'internally there was certain faith,' and he accepted Baba's word as his true medicine, staying there happily. This demonstrates the core teaching that complete trust in the Guru's word transcends material logic and adverse circumstances, leading to spiritual proximity and grace, as he was rewarded with Baba's constant company.