There are four prescribed steps in Gñana Yoga known as Sadhana Chatushtaya (the Four Pillars of Knowledge). These practices complement each other to cultivate the spiritual insight necessary for this path: Viveka (discrimination): When you observe that change is constantly happening and at the same time recognize the unchanging nature of the divine being within you, then you experience discrimination. Although our bodies, thoughts and emotions renew and fluctuate, the part of you that witnesses this process does not change. Identifying your own ability to witness is a purpose of Jnana Yoga.