Zoroastrianism

"Tianchi Holy Land!"
After thousands of years of development, this place has long become a holy place for Zoroastrianism, and non-core disciples are not allowed to enter!
At this moment in this holy land, a hundred or so young men were shouting slogans and performing martial arts in the training ground, while an old man with white hair was sitting by the Tianchi Lake, fishing with a bamboo pole as thick as a thumb.
What is strange is that there is no bait on the fishhook, it is just placed...