What is the Guru's role in spiritual attainment, and what internal enemies hinder this process, as mentioned in Chapter 17?

Chapter 17 of the Sai Satcharitra emphasizes the crucial role of the Guru in guiding a seeker. The text explains that the Guru shows the aspirant the ultimate reality, a place that even the sun's rays, the intellect, and the steps of the Vedas cannot penetrate. This guidance is essential for navigating the spiritual path. The chapter also warns about internal enemies that obstruct the attainment of knowledge. Specifically, it names lust and anger as tendencies that instantly disrupt the spiritual practices of listening, contemplation, and meditation, thereby preventing a seeker from finding peace and progressing toward self-realization.