One day, while wondering in the mountains, Shi Tou said to Shishi,

"‘just lop off that branch of the tree in front of me - its hindering me”

"I didn’ t bring a knife”,’replied Shishi.’ Shi Tou pulled out a knife and gave it Shishi.

"Why not let this come to me?’"said Shishi.

"What would you use it for?’"asked Shi Tou.

Then Shi Tou had a great awakening.