Can you provide a summary of the key themes presented in Chapter 45 of the Shri Sai Satcharitra?

Chapter 45 begins with salutations and powerfully emphasizes the supremacy of the Guru. It posits that serving the Guru's feet is even more potent than achieving Moksha (liberation) and that the Guru's mercy makes worldly life happy and the impossible possible. The chapter then transitions to lamenting the physical departure of Sai Baba, whose form granted contentment and removed the illusion of Maya. However, as Chapter 45 reassures devotees, while the physical form has vanished, Sai's literary form—this very Satcharitra—endures to provide remembrance and bring a unique, indescribable peace to those who listen to the stories.