What is the prescribed method for a disciple to achieve their spiritual goal, and what role does the Guru play in this process?

According to Chapter 45, the path to achieving the spiritual goal involves several key steps. A seeker must first practice discrimination between the eternal (Brahman) and the transient (the world), renounce the fruits of enjoyment, and cultivate virtues like calmness and self-control. The Guru's role is absolutely central in this process, as the Sadguru is identified as the solid mass of Brahman-consciousness. The primary method, or 'means,' is to renounce the transient world and meditate exclusively on the Guru. This constancy of feeling fosters dispassion (Vairagya) and leads to 'undifferentiated worship,' where divinity is perceived in all beings.