What is the spiritual significance of the Uddhava Gita and Nath Bhagawat as explained in the text?

The text from Chapter 18 presents the Uddhava Gita and Nath Bhagawat as paramount spiritual texts. The Uddhava Gita, which contains the dialogue between Krishna and Uddhava, is described as a book through which God manifests, and those who read it with faith can attain God instantly. It is even praised as being superior to the famous Krishna-Arjuna dialogue. The Nath Bhagawat, identified as the eleventh Skandha of the Bhagavat, is called the "loving speech of Nath" and a "platform for the highest spiritual goal." Baba's directive to have these books read daily, alongside the Jnaneshwari, underscores their significance as essential tools for the salvation of souls and the spiritual welfare of his devotees.