In the introduction of Chapter 15, what plea does the author make to the listeners, and what spiritual rewards are promised for heeding the stories?

In Chapter 15, the author humbly pleads with the listeners for their grace and attention, comparing them to a vast ocean that accepts all rivers, whether they are the pure Ganges or a muddy stream. The author wishes to be immersed in the listeners' interest. In return for listening with patience and faith, the chapter promises immense spiritual rewards. It states that devotees will easily attain the Supreme goal (Paramartha), listeners will gain devotion and liberation, the sincere will find happiness and peace, and the fear of worldly existence will be destroyed. Ultimately, listening to these stories is said to fill the heart with joy and cause the Self within to manifest itself.