This painting was Zhang Zhongjing's book seal painting at night. In the painting, Zhang Zhongjing was lighting a lamp and writing something stroke by stroke. What really attracted Su Yun's attention was that on this table, a perfectly copied piece of paper had a blurry pattern drawn on it.
Su Yun recognized the pattern at a glance. It was the Heavenly Cycle Flame Portrait! How could this Heavenly Cycle Flame Portrait appear in Zhang Zhongjing's portrait?
Su Yun looked down at the annotation in puzzlement. Only then did he know that this painting was truly a priceless ancient painting.
The person who drew this painting was Zhang Zhongjing's disciple, and the scene in the painting was all drawn by this little disciple according to the facts. This surprised Su Yun even more. Only he knew that the Heavenly Cycle Flame Portrait was an important acupoint technique cultivated in the human body.