On Shandong brothers' mountain holiday thoughts, what does "Middle Shandong" mean in ancient poems?

Shandong in the poem means that Wang Wei moved to Puxian (now Yongji County, Shanxi Province) at that time, which is located to the east of Hanguguan and Huashan, so it is called Shandong.

Shanju Holiday Thinking of Shandong Brothers is one of the masterpieces of Tang Dynasty poet Wang Wei. The original text is as follows:

I am a lonely stranger in a strange land, and I miss my family more often during the holidays.

When I think of my brothers' bodies climbing high, I will feel a little regret for not being able to reach me.

When a person leaves home to be a guest in other places, especially when the festival comes, he especially misses his relatives. It's a pity that I was the only one with dogwood in my head when my brothers climbed the mountain today.

Extended data:

The creative background of "I miss my Shandong brother on vacation in the mountains"

The original note of this poem: "That was seventeen years old." Explain that this is the work of Wang Wei in the17th century. At that time, Wang Wei wandered between Luoyang and Chang 'an alone. He is from Zhou Pu (now Yongji, Shaanxi Province), and Zhou Pu is in the east of Huashan Mountain, so he called his hometown brothers Shandong brothers.

September 9th is the Double Ninth Festival, and some places in China have the custom of climbing mountains. The thirty-second volume of "Taiping Magnolia" quoted the story of local customs: "This day is established by convention and matured with the strong spirit of Cornus officinalis. On this day, the folded house is blocked to prevent early cold. " ?

Baidu Encyclopedia-Thinking of my Shandong brother on vacation in the mountains