Describe the specific instructions given by Lord Dnyaneshwar Maharaj for obtaining knowledge from saints.

In Chapter 0, the text quotes from Lord Samarth Sadguru Dnyaneshwar Maharaj's commentary on the Shrimad Bhagavad Gita. To bring beautiful knowledge into one's mind, Maharaj instructs that one must "serve the saints with your entire being." This service is described as the "doorway" to the treasure of knowledge. The instructions specify that one should surrender at their feet with "body, mind, and soul" and perform all service "without ego." By following this path of selfless service, the saints will then share the knowledge that was asked for, which will enlighten the heart and ensure that doubts do not arise.