A photograph of the Shaolin Monk who is still doing a great training still now

It is a picture of the Shaolin Temple practice landscape that often appeared in movies and manga. Speaking of Shaolin Temple again, it is a unique pose. However, as far as you can see in the photograph, there are many things that you do not understand.

Details are as below. It seems that I am very reflective with upright immovable handstand.
Shaolin 4

why?
Shaolin 2

This seems very painful
Shaolin 7

Handstand with just two index fingers
Shaolin 9

This time only one index finger standing on hand
Shaolin 6

Three point inverted that I have never seen
Shaolin 11

I do not understand the meaning well
Shaolin 8

It seems to be cold for the time being
Shaolin 10

It is suspended. It seems as though it is being punished.
Shaolin 5

I usually walk on the wall
Shaolin 3

If it is lined up this way it will seem like a normal thing
Shaolin 1

My Interesting Files: Shaolin