Why is the Guru's anger considered so serious, to the point where there is 'no protector'?

The gravity of the Guru's anger is a central point in Chapter 18. The text establishes a unique hierarchy by stating that the Guru is the protector even when God is angry, but if the Guru is angry, there is no protector at all. This highlights the Guru's role as the disciple's ultimate and most immediate connection to the divine. Since the Guru is described as God manifest—Brahma, Vishnu, and Maheshwara—and the Supreme Lord, angering the Guru means alienating the very manifest form of grace and guidance. It signifies a severing of the primary spiritual lifeline, leaving the disciple without a direct intercessor or conduit to divine protection and knowledge.