In TanDao, we use this famous zen tale as a metaphor for long and winding path to martial arts mastery:
The Master’s Three Sons
Once upon a time two old kung fu masters were in a teahouse. One master asked, “How are your three sons progressing with their martial arts?”
“Let’s test them,” said the host. He took a heavy vase and placed it over a door so when opened the vase would fall. He called his youngest son, a strong youth who demonstrated powerful punches and kicks with fierce shouts.
“Pay your respects,” his father said. His son strutted over and shoved the door open. The vase crashed on his head but when it hit the floor he shattered it with a punch.
“Your boy is powerful,” said the guest. “He is young, one day he may understand power,” said the host, placing another vase over the door. He called his middle son, a tall youth who performed graceful and ferocious animal movements. When the youth pushed open the door he dodged and caught the vase as it fell. He bowed.
“Your second son has power and control,” complimented the visitor. “If he perseveres he may one day achieve true power.” the host said, putting up another vase. He called his eldest son.
After doing a slow moving meditation form, the son calmly walked towards the door. Noticing the vase, he reached up and took it down. He held it out while bowing, “Pleased to meet you, sir.”
“This is my number one son,” his father smiled. The visitor said, “Indeed, he is on his way to becoming a master”

Three Stages of Mastery: Technical. Strategic. Intuitive.
The sons correspond to three different stages: technical (youngest son), strategic (middle son) and intuitive (eldest son). Each stage is a different mindset and focuses on a particular way of problem solving (the falling vase). The three sons express three alternative options reflecting their stage of development: the youngest son aggressively confronts the problem, the middle son strategically defuses the problem and the eldest, avoids the problem through mindful awareness.
Think about it.
Lawrence Tan