According to Chapter 3, what is the simplest way to achieve the "supreme goal" in the current age (Kali Yuga), and how does this compare to other ages?

Chapter 3 of the Sai Satcharitra explains that while different spiritual ages had different prescribed paths, the current age, Kali Yuga, offers a uniquely simple means for attaining the supreme goal. The text notes that in the Kruta Age, the path was 'control of mind and senses'; in the Treta Age, it was 'sacrifice'; and in the Dwapara Age, it was 'worship.' However, for the Kali Yuga, 'singing the stories of the Name' is presented as the simple and accessible means. This chapter emphasizes that listening to the stories of the Guru is this straightforward path to the ultimate spiritual objective for everyone.