How does Chapter 13 explore the relationship between dreams, reality, and Sai Baba's grace through the Patil's story?

Chapter 13 delves into the mysterious connection between dreams and reality using the Patil's healing as a prime example. The text explicitly challenges the notion that dreams are merely illusions, stating, 'People call dreams an illusion, but sometimes the opposite reality appears.' The Patil's experience confirms this, as the intense, painful punishments he endured in his dreams—being beaten with a cane and having his chest crushed—directly resulted in a real-world miracle: the complete destruction of his disease and relief from sorrow upon waking. This account from Chapter 13 suggests that Sai Baba's grace can operate through unconventional means, even using the realm of dreams to affect physical reality and turn back time.