How does the text contrast spiritual reliance on a Guru with reliance on worldly relationships?

The text in Chapter 45 draws a sharp distinction between the support offered by worldly relations and the spiritual guidance of a Guru. It posits that family members like mothers, fathers, sons, and wives are ultimately not companions in achieving the spiritual goal, as their affections are tied to worldly matters. For instance, a son might eye the wealth he can claim, and a wife may mourn her potential widowhood. In contrast, the Guru is presented as the only reliable support for spiritual attainment. The text advises a seeker to give up hope in others for this purpose, maintain strong self-confidence, and recognize the Sadguru as the solid mass of Brahman-consciousness.