What does Chapter 38 say about the hierarchy of virtues across different ages and the special place of charity in the Kali age?

According to Chapter 38, the scriptures of human duty prescribe different primary virtues for different cosmic ages. It is stated that penance was key in the Krita age, knowledge in the Treta age, and sacrifice in the Dvapara age. For the current era, the Kali age, charity is designated as the most important practice. The chapter further elaborates on a hierarchy within charity itself, positioning food donation (Annadan) as the 'chief and foremost' among all deeds. It powerfully argues that other donations are incomplete without food donation, comparing a cluster of stars without the moon to merits without the merit of feeding the hungry. Thus, Chapter 38 establishes Annadan as the pinnacle of virtuous action in our time.