How does the text use the analogy of a devoted wife to explain the ideal relationship between a disciple and their Guru?

Chapter 45 draws a powerful analogy between a chaste and devoted wife (Pativrata) and a disciple. Just as a devoted wife has singular, boundless love for her husband and he is her only lifelong support, a disciple should feel the same way toward their Guru's feet. The text explains that a Pativrata never even thinks of another man as her husband, and this singular focus is the model for a disciple's devotion. However, as Chapter 45 clarifies, while this is a useful metaphor, the love for a Guru is even more profound and has no limits, a greatness which a true disciple understands. This is contrasted with worldly relations who cannot be fully relied upon for spiritual progress.