Anicca
Anicca ( Pali : अिनच्च; Sanskrit : अिनत्य, anitya ; jap. 無常 , mujō ; Khmer : អនិច្ចំ, aniccam ; Thai : อนิจ จ ตา , à-nít-jang ) is one of the three characteristics (anicca, dukkha , anatta ) of Buddhism and stands for the concept of impermanence, impermanence of all being, one of the essential teachings of Buddhism. According to this doctrine, without exception everything is in the flow of transience, even planets, stars and gods are subject to it. This is experienced in human life in aging and in the cycle of birth and rebirth ( samsara ) and in every possible experience of loss.
Because all things are impermanent, any upadana (“clinging”) to them is futile and leads to suffering. The only way to end anicca is to attain nirvana . Nirvana is considered the only form of existence that does not know impermanence, decay or death. In the Nirvana Sutra it is said that all compound, constructed things and states are "temporary" - the only exceptions to this are Nirvana and the Buddha (the personification of Nirvana).