Full context:   In Buddhism, knowledge that leads to liberation is called vijjā. It contrasts with avijjā or ignorance, which is understood as the root of all suffering. This is often explained in relation to the claim that humans suffer because they crave things that are impermanent. The ignorance of the impermanent nature of things is seen as the factor responsible for this craving. The central goal of Buddhist practice is to stop suffering. This aim is to be achieved by understanding and practicing the teaching known as the Four Noble Truths and thereby overcoming ignorance. Knowledge plays a key role in the classical path of Hinduism known as jñāna yoga or "path of knowledge". It aims to achieve oneness with the divine by fostering an understanding of the self and its relation to Brahman or ultimate reality.