兩種生死
There are two kinds of birth and death, namely 'share-section birth and death' (分段生死) and 'change birth and death' (變易生死 ). The former one refers to the fact that a person has a certain share of years to live, and each person has a certain appearance. Every person has his own appearance. Ordinary people are subject to 'share-section birth and death'. However, for those Arhats who have ended the 'share-section birth and death', they are still subject to 'change birth and death', which refers to the birth and death of their thoughts. Thought after thought arises, thought after thought dies. Their thoughts flow on in continual succession. It should be noted that the cause of birth and death is ignorance ( 無明 ), and its conditions are karmic activities (業緣).