What does the ancient poem "The Shepherd Boy" mean?

Shepherd boy means that the vast grassland is like being laid on the ground, and there are grasslands everywhere. The intermittent melodious flute of the shepherd boy was faintly heard in the evening breeze. After dinner, at sunset, the shepherd boy came back from the pasture. He didn't even take off his hemp fiber, but just lay on the grass and looked at the full moon in the sky.

Shepherd boy

[Tang] Lv Dongbin

The grass shop is six or seven miles away from the field, and the flute makes the night wind three or four times.

Come back from a full meal at dusk and lie in the moonlight without taking off your hemp fiber.

Lv Dongbin, the founder of the mainstream Quanzhen Sect of Taoism. Mingyan ("Rock" or "Rock"), the word Dong Bin, the road number Chunyangzi, claimed to be a native of Zhou Pu River in Hedong (now Yongle Town, Ruicheng, Shanxi). Now there is Yongle Palace built by Qiu Chuji in Yuan Dynasty in Ruicheng, Shanxi Province, which belongs to the national key cultural relics protection unit, and is also called Dachunyang Wanshou Palace. Lv Dongbin is a master of Taoism. At present, the northern Sect of Taoism (Wang Zhongyang Quanzhen Sect), the southern Sect (Zhang Ziyang Quanzhen Sect), the eastern Sect (Lu Sect) and the western Sect (Li Sect), as well as other Taoist sects hidden among the people, all claim to have originated in Lv Zu. Originally a Confucian scholar, he studied swordsmanship from the real Zheng Huolong at the age of 40 and alchemy from Zhong Liquan at the age of 64. Later, he became a sentient being in the universe, and there were many legends in the world, and he was honored as a sword Sect and a sword fairy. According to Quanzhen Quan Yi, in the Northern Song Dynasty, at a party in the famous Xianyuan Mountain, Huaxuan Jushi was listed as one at the invitation of the first one.