What does "Huangliang" in "Huangliang Yimeng" refer to?

Huangliang: millet. A kind of corn, native to northern China, was one of the important food crops in the ancient Yellow River Basin.

Huang Liang Yi Meng is a metaphor for an illusory dream that cannot be realized. Later, it is used to describe prosperity and wealth as being like a dream, which is short-lived and illusory; beautiful things only last for a moment and become empty in a blink of an eye; or it is used to describe the failure of dreams and desires. This expression is often used.

Source

Tang Dynasty Shen Jiji's "Pillow Notes": "A strange person said: 'Why are you sleeping in a dream?' Weng laughed and said: 'The things in the human world are the same. '"

Allusion

Once upon a time, there was a poor scholar Lu Sheng who met the Taoist priest Lu Weng in an inn in Handan. Lu Weng gave him a pillow. At this time, the shopkeeper was starting to make yellow rice. Lu Sheng took a nap. In his dream, he became a Jinshi, became a prime minister, married a beautiful wife, had children and grandchildren, and lived a happy life. After waking up from the dream, the host’s rice was not yet cooked

Tourist Attractions

Huangliangmeng Luxian Temple is located in Huangliangmeng Town, 10 kilometers north of Handan City. It is a famous cultural relic and historic site in Hebei Province It is also a tourist attraction. According to legend, Lu Sheng had his dream of yellow rice here.