The source material mentions two different motivations for studying sacred texts. Can you compare and contrast them?

According to Chapter 0, sacred texts like Guru biographies can be used in two distinct ways: with desire (Kamya) and with a selfless mind (Nishkam). The 'Kamya' approach is undertaken for worldly purposes, such as achieving prosperity or seeking relief from worries, calamities, and diseases. In contrast, the 'Nishkam' approach is selfless, performed with the goal of attaining liberation from the world and the cycle of birth and death. The text explicitly states that Nishkam Guru service is always considered superior, regardless of the form it takes.