Su Qin was a famous lobbyist during the Warring States Period.
It is said that Su Qin spent all his life savings and borrowed a lot from relatives and friends before he raised huge sums of money to lobby other governors for personal prosperity. It's a pity that Su Qin gambled all his life and finally failed.
Su Qin wrote to King Hui of Qin ten times, but he couldn't move his mind and didn't let Qin adopt his theory. Su Qin worked hard for many years, the mink was damaged, and the gold wealth of 100 kilograms he carried with him was exhausted. I just left Qin and returned to Luoyang, and I had no money to travel along the way. He had to use cloth leggings, carrying bamboo slips, books and luggage, and returned to his hometown step by step, with a dusty face and a thin body, which was quite shabby and shameful.
When Su Qin came home, his wife ignored him, continued to weave as if nothing had happened, and his sister-in-law didn't cook for him, even his parents didn't talk to him, just as he didn't exist. It is conceivable that Su Qin's situation at that time was so miserable! At that moment, Su Qin lamented that it was all the fault of King Hui of Qin. If Qin didn't adopt his plan, how could he end up like this?
However, Su Qin soon woke up, opened the bamboo slips he brought back overnight, and began to study hard again, especially focusing on the rostrum in Sun Tzu's The Art of War and Yin Fu written by Jiang Taigong, practicing repeatedly and pondering attentively. At night, tired and thirsty, Su Qin tied his hair to the beam to prevent his head from drooping; He stabbed himself in the thigh with an awl, and when he saw blood pouring out, his heart and lungs ached, and his drowsiness disappeared, he began to study hard again. This is the origin of this idiom. Later, Su Qin studied in thousands of books, made a fortune again, and finally achieved fame. It can be seen that this constellation belongs to a typical image of hiding good luck in a fierce battle. It should be noted that Su Qin was later named as six countries. So, if you get this constellation, don't worry too much. There are still great blessings to come.