be a better rendition. The term includes not only ignorance out of darkness, but also obscuration, misconceptions, mistaking illusion to be reality or impermanent to be permanent or suffering to be bliss or non-self to be self (delusions). Incorrect knowledge is another form of Avidya, states Wayman. In other contexts, avidya includes not knowing or not understanding the nature of phenomena as impermanent, the Four Noble Truths, other Buddhist doctrines, or the path to end suffering. Sonam Rinchen states Avidya in the context of the twelve links, that "[Ignorance] is the opposite of the understanding that the person or other phenomena lack intrinsic existence. Those who are affected by this ignorance create actions which precipitate them into further worldly existence." Not understanding the Four Noble Truths, or its implications, is also Avidya. In Buddhist traditions Avidya appears as a major item of discussion in two doctrines about the nature of reality, in various Buddhist traditions. One relates to the Anatta (Anatman) doctrine, that is ignorance or misconceptions about "Self", when in reality there is only non-Self according to Buddhism. The second relates to Anicca doctrine, that is ignorance or misconceptions about "permanence", when the nature of reality is impermanence. Theravada Bhikkhu Bodhi states that Avidya is an important part of the Theravada Abhidharma teachings about dependent arising about conditions that sustain the wheel of birth and death. One such condition is the karmic formations that arise from ignorance. In other words, states Bodhi, ignorance (avijja) obscures "perception of the true nature of things just as a cataract obscures perception of visible objects". In the Suttanta literature, this ignorance refers to the non-knowledge of the Four Noble Truths. In the Abhidharma literature, in addition to the Four Noble Truths, it is the non-knowledge of one's 'past pre-natal lives' and 'post-mortem future lives' and of dependent arising. Mahayana The Mahayana tradition considers ignorance about the nature of reality and immemorial past lives to be a primordial force, which can only be broken through the insight of Emptiness (sunyata). However, compared to other Buddhist traditions, states Jens Braarvig, Avidyā is not so much emphasized, instead the emphasis on "construing an illusory reality" based on conceptualization when the ultimate reality is Emptiness. Avidya is the greatest impurity and the primary cause of suffering, rebirth. The insight into Emptiness, state Garfield and Edelglass, that is the "lack of inherent nature of all phenomena, including the