What does ghost mourning mean? What are the allusions? What do you mean now?

The ethereal shore has beautiful landscapes and charming scenery. Pine on the top of the rock, purple bamboo hanging down the rock. On the cliff on the right side of Chiyan, there is an unknown old tree with lush foliage and evergreen seasons, reaching into the sky and overlooking the river beach. The scenery is picturesque and fascinating.

There is a myth in that unknown old tree. I don't know which year, the lark flew from the "Penglai" fairyland with the root of the sacred tree in its mouth to the red rock on the ethereal shore. When he saw the beautiful scenery, he sang with joy. As soon as I opened my mouth, the root of the sacred tree immediately fell between the cracks in the rock and took root. After the rain and dew moisten, it will grow into a towering tree. Because tourists can't climb close, it becomes a paradise for larks to jump and be happy. Don't want to, cause the envy of the water ghost in the river, it also wants to climb the ancient tree to see the scenery. As soon as the water ghost touched the trunk, it thundered and thundered, and the wind and waves stirred the water ghost into a deep pool. Because of this allusion, later generations called this tree "Ghost sees sorrow".