About Duḥkha

Duḥkha is an important concept in Buddhism, Jainism and Hinduism, commonly translated as "suffering", "unhappiness", "pain", "unsatisfactoriness" or "stress". It refers to the habitual experience of mundane life as fundamentally unsatisfactory and painful. It is the first of the Four Noble Truths and it is one of the three marks of existence. The term also appears in scriptures of Hinduism, such as the Upanishads, in discussions of moksha.