Dukkha
Ṭhānissaro Bhikkhu
On at least two occasions, the Buddha said that all he taught was dukkha and the ending of dukkha (MN 22 (Alagaddūpama Sutta, The Water-Snake Simile); SN 22:86 (Anurādha Sutta, To Anurādha)). This means that if you want to understand his teachings, dukkha is a good word to know. Its primary meaning is simple enough—pain—but it covers all levels of pain, from acute physical suffering and mental ang…