Resentment is aroused when a man fails to receive rewards for a favour he has done others. So, instead of expecting rewards, he should forget about them, and therefore his resentment as well.
Yunyan Tansheng (780–841) was a renowned Chan Buddhist master of the Tang Dynasty, known for his sharp wit and profound teachings. A disciple of Yaoshan Weiyan, he later became the teacher of Dongshan Liangjie, founder of the Caodong (Soto Zen) school. One of the most famous gongans (koans) associated with him is the dialogue…