Telesthesia between Zeng Shen and His Mother
Zeng Shen of the Zhou Dynasty in the Spring-Autumn period, alias Ziyu, was extremely dutifully to his mother. One day when Shen was pricking firewood in the mountains, a guest of theirs came to visit them. His mother was quiet at a loss, as she expected Shen to be back, but failed. So she snapped her own finger. Shen suddenly felt an ache in his heart, and then went back home, kneeling in front of his mother and asked what had happened. "It's quite urgent. A guest came so I bit my finger hard to let you know about it."