The so-called hidden front means that the pen front is hidden in the middle of stippling without being exposed. Proud of the hidden front, use the reverse front when starting a pen, and return the front when closing the pen. This is called "hiding the head and protecting the tail, starting and ending without trace." The characters written with Tibetan front strokes are subtle, calm, rich and round, which is called "Tibetan front covers its gas" in calligraphy (Figure 9).
Figure 9? Tibetan qianbi
The so-called exposed front is symmetrical with the hidden front, that is, the pen front is exposed (also known as exposed front). Lu Feng's pen doesn't fall when he starts writing, and it doesn't fall when he closes it. With a lot of pen and ink, Jin feels elegant, free and easy, lively and natural, which is called "longitudinal charm" in calligraphy. (as shown in figure 10)
Figure 10 Pen for Exposing the Front
Calligraphy is to reuse hidden front and exposed front, and calligraphers have different opinions. Generally speaking, the Tibetan front should be the main one, supplemented by the exposed front. If the main pen uses the hidden front, the auxiliary pen can use the exposed front, or open and close the hidden front with one stroke, or open and close the hidden front, so as to show strength and agility at the same time.