What does the ancient poem "Yellow Crane Tower Farewell Meng Haoran on the way to Yangzhou" mean?

Say goodbye to Meng Haoran on the way to Yangzhou

Tang Libai

An old friend stayed in the West Yellow Crane Tower, and fireworks went down to Yangzhou in March.

Sailing alone, the blue sky is exhausted, and only the Yangtze River is in the sky.

[translation]

Old friends bid farewell to the Yellow Crane Tower from the west,

Go to Yangzhou, which is full of flowers in March.

The distant shadow of the lonely sailboat disappeared into the blue sky,

I only saw the Yangtze River water rushing into the sky.

Appreciate:

Meng Haoran is a famous poet highly respected by Li Bai. He was once known as the poet "Master, I sincerely salute you, and your fame has risen to the sky". Roaming around the world's famous mountains and cities is an open fashion for literati in the prosperous Tang Dynasty. Li Bai, a young man living in Anlu, Hubei Province, has a long-term travel experience of "serving the country with his sword, leaving his relatives to travel far and south to the sea". Therefore, he is a famous building in Wuchang-visiting Yangzhou, a famous city in Jiangzuo (known as Guangling in ancient times). Facing the tourism event of "having three talents" linking famous buildings, celebrities and famous cities, he is full of poetry, and his feeling of the world is bright and beautiful, without any sadness.

The first two sentences should have explained the time, place and destination of farewell, but this explanation was sensational by the vivid image of "Fireworks March". Didn't Li Bai have a story of "dream pen gives birth to flowers"? Unexpectedly, as a symbol of his genius, flowers were born in his dreams, and fireworks were generated when he saw him off in March. Before winning the prize, he called this sentence "the eternal quatrain". The sky is also moved by this feeling of bright and beautiful world and becomes as clear as the blue sky. Under it, it follows the popular "lonely sail and distant shadow". Why does it feel lonely and desolate? It draws a yearning for life in the vast sky. Life is like running water, and other feelings are like running water. Those eyes with infinite attachment followed the distant shadow of the solitary sail that disappeared out of sight, and it turned into the eternal Yangtze River. The instant and eternal scene of sending a famous building to a famous city has become a poetic symbol of the prosperous tourism of poets in the prosperous Tang Dynasty.