Tanha (Craving) — The Origin of Suffering

Tanha (Pali) or trishna (Sanskrit) is identified in the Dhammacakkappavattana Sutta — the Buddha's first discourse at Sarnath — as the samudaya (origin) of dukkha, constituting the Second Noble Truth. The Pali canon distinguishes three species: kama-tanha (craving for sensory gratification), bhava-tanha (craving for continued existence), and vibhava-tanha (craving for annihilation). Within the twelve nidanas of pratityasamutpada as recorded in the Samyutta Nikaya, tanha occupies the eighth position, arising conditioned by vedana (feeling) — it is the precise hinge-point where the chain can be broken, because between vedana and tanha lies the gap where sati (mindfulness) can intervene before compulsive reactivity solidifies into upadana (clinging).