Chinese Wisdom
Yasha is half-Chinese and his grandfather is a famous Chinese athlete and a Wushu master, who believes that youth equals flexibility, and of course loves to teach that wisdom to his grandson! :D
As a Chinese saying goes, "a flexible backbone guarantees a long healthy life"... and while not get some flexible legs as well while we're at it XD
What do you think? 😄
¯\_(ツ)_/¯