I want to be 大俠

I have never watched this TV. However, I am always so fascinate by the theme song:

湖海洗我胸襟　河山飄我影蹤
雲彩揮去卻不去　贏得一身清風

塵沾不上心間　情牽不到此心中
來得安去也寫意　人生休說苦痛

聚散匆匆莫牽掛　未記風波中英雄勇
就讓浮名輕拋劍外　千山我獨行
不必相送　啊　獨行不必相送

Why? Maybe I wanted to be like this, though in real life, I know that I can never be.

Isn't it cool if you can be 來去自如, 不為世間事而煩惱?
Unfortunately, I can't be this 潇灑. I'm just a normal person, who cares so many things in the world.

Can I train myself to be really "don't care" one day?