Can you explain the significance of the Sadguru as a 'helmsman' and the benefits of surrendering to him as described in Chapter 6?

Chapter 6 of the Sai Satcharitra opens by establishing the Sadguru's paramount importance, referring to him as the 'helmsman' of one's life. This metaphor implies that whether in spiritual or worldly matters, only the boat guided by the Sadguru will safely reach its destination, the 'far shore.' The chapter continues by stating that by surrendering with body, speech, and mind to the capable Sai, a devotee can attain the four primary goals of life—Dharma (righteousness), Artha (wealth), Kama (desire), and Moksha (liberation)—naturally and without even having to ask for them.