坐禪三昧經 2.100

2.100

Answer: "This is not out of a desire to obtain duḥkha, but wishing to preserve great happiness; fearing duḥkha, they therefore choose death. Duḥkha is the foremost affliction, and happiness is the foremost benefit. For this reason, by abandoning true duḥkha one attains happiness. Therefore, for the division of fruit, the Buddha uniquely named it the truth of duḥkha, and not the truth of impermanence, emptiness, or non-self."