Later, many people asked me the same question: Why are you, a doctor, the commander of the Tiangang Guard?
I usually don't talk.
Because when the answer is told, they don't believe it.
The day I first met Li Shimin, I had just used a broken table leg to open my own skull. He saw blood dripping down my neck outside the ruined temple and said, "Go back to Chang'an with me alone."
That happened in the first year of Zhenguan.
I haven't been myself since.
——Lin Bei, the first commander of the Tiangang Guard, said in his own words.