Describe the teachings of Lord Samarth Sadguru Dnyaneshwar Maharaj on how to acquire knowledge from saints.

In Chapter 0, the text quotes Lord Samarth Sadguru Dnyaneshwar Maharaj's commentary on the Shrimad Bhagavad Gita. To bring beautiful knowledge into your mind, he advises that you must serve the saints with your entire being. He uses the metaphor that service is the doorway to the treasure of knowledge. This service should be performed by surrendering at their feet with body, mind, and soul. Crucially, all service must be performed without ego. If one follows this path, the saints will share what was asked, leading to an enlightened heart where doubts cannot arise.