What are the two primary motivations for studying spiritual texts like Guru biographies, and which approach is considered more virtuous?

The provided text outlines two distinct ways these sacred books are utilized. The first is with desire, known as "Kamya," which is for worldly goals like prosperity or the removal of worries, diseases, and distress. The second is with a selfless mind, or "Nishkam," which is undertaken for the ultimate goal of liberation from the cycle of birth and death. According to Chapter 0, the Nishkam approach to Guru service, including the study of texts, will always be considered superior.