1. The impurity of the age, such as war or other disturbances of the social or natural environment.
2. Impurity of desire, the tendency to be ruled by emotions such as greed or anger.
3. Impurity of living beings, the physical and spiritual decline of human beings.
4. Impurity of view, impurity derives from mistaken views or values.
5. Impurity of life span, the distortion of life itself, which leads to a disordered and shortened life span.