Impermanence

A fundamental concept in Buddhism, that there are no objects, no events, no phenomena, no mental events, no ideas, no beliefs in the universe that are unchanging or ever-lasting.  All phenomena without exception are changing every second.  This is a law that the Buddha has realized and proclaimed, together with no-self and suffering, as the three characteristics of worldly phenomena (V: tam pháp ấn).  Not accepting the law of impermanence is a main cause of suffering.

P: annica, S: anytia, V: vô thường