This is similar to the Buddhist concepts of the impermanence and emptiness. In Eastern philosophy, Anicca (Sanskrit "anitya") or "impermanence" describes existence. This is connected to the impermanence and insubstantial nature of dharmas. This impermanence is a source of "dukkha". Noh often stresses the Buddhist doctrine of impermanence. Cremation also exemplifies the Buddhist teaching of impermanence. Their skeletal form is a reminder of the impermanence of life and eternal change. The second of these four is the contemplation on impermanence and death. Buddhists emphasize the impermanence of any self-concept. Thus, the work continues the artist's concern with conflicting themes of impermanence and immortality. Kenko relates the impermanence of life to the beauty of nature in an insightful manner. Other reasons for the prevalence of suffering concern the concepts of impermanence and illusion ("maya"). Natural sights evoke images of Sukhavati and impermanence in her mind. Khema, who was very vain, then comes to understand the nature of impermanence. Acutely aware of his own impermanence, he was desperate to find a solution.