The idiom "Steal the light by digging the wall" comes from the bitter story of an ancient character? Ask god for help

This is the story of Kuang Heng's diligent study in the Western Han Dynasty.

The Kuang family has been farming for generations, but they are very diligent and eager to learn. Because his family is poor, he has to help others get reading materials. Kuang Heng lay in bed reciting the books he had read during the day. Behind me, I suddenly saw a light coming through the east wall. He stood up and went to the wall to have a look. Ah! It turned out that the neighbor's light came through the cracks in the wall.

So Kuang Heng thought of a way: he picked up a knife and dug several cracks in the wall. In this way, the light coming through is also very big, so he gathered the light coming through and began to read. When Kuang Heng was young, he chiseled through the wall to attract his neighbors to study by candlelight, which was widely praised by the world.

Extended data:

Regarding the birthplace of Kuang Heng, there are Wang Kuang Village, Lucheng Town, Lanling County, Linyi City, Shandong Province, Kuantan Village, Wangzhuang Township, Yicheng District, Zaozhuang City, Shandong Province, Lanling Town, Cangshan County, Shandong Province and other places. There is also a saying that Kuang Heng was originally from the East China Sea, and moved to Zoucheng, Shandong Province in the Kuang Heng era, and regarded Kuangzhuang Village in Zoucheng, Shandong Province as Kuang Heng's hometown.

Kuang Heng's Tomb is located in the southwest of Yicheng, Zaozhuang, Shandong 14 Huali. The mound is about 4 meters high and 35 meters in diameter, and the tomb area is covered with trees.

During the Cultural Revolution, the Red Guards dug a pit in the south of the mound, which was 2 meters deep and didn't reach the grave. The original Kuang Heng Temple in the south of the tomb was rebuilt during the reign of Emperor Qianlong of Qing Dynasty. After 40 years, it has experienced vicissitudes. Only one tombstone was left, which was inscribed by Zhang Yushu, the magistrate of Yixian County during the Qianlong period: "Tomb of the Prime Minister of Han Dynasty, Le 'an Hou Kuangheng".