What is the 'firm scriptural truth' that Hemadpant realizes, and what two virtues does he say are needed to fulfill it?

After contemplating how even divine incarnations like Rama and Krishna submitted to their own Gurus, Hemadpant arrives at a profound realization which he calls a "firm scriptural truth." As stated in Chapter 2, this truth is: "Without a Guru, there is no knowledge or spiritual goal." However, simply having a Guru is not enough. The text immediately clarifies the disposition required of the disciple. Hemadpant learns that one must abandon the pride inherent in debating and instead cultivate two essential virtues. These virtues are faith (Shraddha) and patience (Saburi), without which, he asserts, "Not a bit of the spiritual goal is achieved."