How does Chapter 40 describe the spiritual union between a devotee and the Sadguru?

Chapter 40 uses a powerful analogy to explain the spiritual union between a devotee and the Sadguru. It compares them to a river and an ocean, which have different names but are essentially one. When they meet, no difference remains. Similarly, the chapter teaches that when a devotee seeks exclusive refuge in the Sadguru with true devotion, the Sadguru grants them His own Guru-nature. This process dissolves the sense of duality and the separate feelings of "me" and "you," leading to a state of oneness where the Guru embraces the devotee in His heart.