Tiger bones are unique to tigers, but Cheng Yan is not. Because besides tigers, horses also have phoenix eyes. The phoenix eye has one eye, not only the end of the eye should be upturned, but also the eye shape of the phoenix eye is special, beautiful and unique. Far from it. This is not standard.
Introduction:
Cheng refers to the eyes with small corners facing upwards. Also used as a good name for women's eyes. See chapter 10 1 in the Water Margin: "phoenix eyes are picturesque, with thick eyebrows, pale face and red face." It is also a common calligraphy term.
The name of the fingering method of holding the pen, when holding the tube, the phalanx of the thumb is straight, and the inside is slightly convex, forming a long and narrow gap with the flexed index finger, so it is called "phoenix eye". People with prominent phalanges and empty mouths are called "longan", which is another way of writing.