Can you explain the scriptural and philosophical basis for the importance of food donation as presented in Chapter 38?

Chapter 38 of the Sai Satcharitra provides a deep philosophical and scriptural foundation for the practice of food donation (Annadan). It references the scriptures of human duty, stating that while different virtues were emphasized in previous ages—Penance in Krita, Knowledge in Treta, and Sacrifice in Dvapara—Charity is the prescribed path for the current Kali age. The chapter elevates food to a divine status, declaring that 'Food is the form of Para-Brahman (the Supreme Reality).' It explains that all beings are born from food, are sustained by it, and ultimately merge back into it. This perspective frames Annadan not just as a charitable act but as a sacred duty that acknowledges the divine essence in all life. As Chapter 38 concludes, food donation is the 'merit among merits,' a principle proven by the Shrutis (Vedas).