Problem
Discuss the three marks of existence (trilaskshana) in Buddhism: impermanence (anicca/anitya), suffering (dukkha), and non-self (anatta). Then compare and contrast the concept of impermanence in Buddhism with the same concept in Hinduism (as found in the Katha Upanishad in the Upanishad reading). Hint, the Upanishads do believe in a permanent aspect of the self.