First, orchid refers to the external expression of China ancient people's spiritual temperament (orchid is a gentleman's flower, so it is usually used to express people's elegant sentiment in ancient poetry, even in contemporary times, many men prefer orchids when planting flowers). Ancient operas and dances amplified this lifestyle and passed it on to culture.
The other is the origin and the "flower finger" in Indian Buddhism. Let's leave it to experts for textual research, at least it can show that there were many people in other countries before.
In ancient times, blue finger was a patent for men, which was a sign of their masculinity. At that time, someone wrote a book "Orchids and Algae" to teach people how to appreciate, temper and maintain blue flower fingers.
According to the book, the formula of orchid finger evaluation is: hook, soft, white and thin-hook, that is, bend; Soft, soft; White means white; Thin is thin-it is best to meet the following criteria: hook is like a full moon, soft is like boneless, white is like jade, and thin is not as good as hemp stalk. At that time, the popular fingering of orchids was very complicated, including upward warping, downward warping, forward warping, left warping, right warping, positive warping and oblique warping.