The root cause of dukkha is identified as ignorance of what?
The second truth is that the origin of dukkha can be known. Within the context of the four noble truths, the origin of dukkha is commonly explained as craving (Pali: tanha) conditioned by ignorance (Pali: avijja). On a deeper level, the root cause of dukkha is identified as ignorance (Pali: avijja) of the true nature of things. The third noble truth is that the complete cessation of dukkha is possible, and the fourth noble truth identifies a path to this cessation.[note 7]
Buddhist scholars have produced a number of intellectual theories, philosophies and world view concepts (see, for example, Abhidharma, Buddhist philosophy and Reality in Buddhism). Some schools of Buddhism discourage doctrinal study, and some regard it as essential practice.