Dukkha (Suffering) — The First Noble Truth

Dukkha is the First Noble Truth (dukkha ariya sacca) as proclaimed in the Dhammacakkappavattana Sutta at the Deer Park in Isipatana. The Pali tradition distinguishes three registers: dukkha-dukkha (the suffering intrinsic to painful experience), viparinama-dukkha (the suffering inherent in the impermanence of pleasant states), and sankhara-dukkha (the pervasive unsatisfactoriness of all conditioned phenomena composed of the five aggregates — rupa, vedana, sañña, sankhara, and viññana). The Visuddhimagga identifies dukkha as one of the tilakkhana (three marks of existence) alongside anicca and anatta, specifying that its full comprehension (pariñña) through vipassana practice constitutes the first of four functions the noble truths demand: dukkha is to be fully understood, not merely endured or escaped.