According to Chapter 38, why is food donation considered superior to other forms of charity?

Chapter 38 explains that food donation, Annadan, holds a unique and superior position among all charitable acts. The text argues that while donating clothes or vessels might require consideration, food donation needs no such basis. As stated in Chapter 38, anyone who comes to the door at any time should be fed, as hunger is a universal experience. The chapter posits that "Food is the form of Para-Brahman" and the fundamental means for survival. It further clarifies that other forms of donation are incomplete without the donation of food, comparing it to how a necklace is incomplete without its pendant. This makes Annadan the "merit among merits."