What does the change of words in poetry vividly illustrate through the poet's conception process?

The poem "Changing Poetry into Ci" is about the problem of "refining words" in poetry creation. Through the poet's conception process, it is vividly explained that the change of a word can make the poem have vitality, make the scene in the poem jump from the paper and make the realm more vivid.

Changing Poems into Characters (selected from Rong Zhai's Continuation, by Hong Mai)

Wang Jueju said, "Guazhou is separated from Jingkou by water, while Zhongshan is only separated by several mountains. The spring breeze is green in Jiang Nanan. When will the bright moon shine on me? " Scholar Wu Jun hid his grass. At the beginning, he said that he was in Jiang Nanan again. He circled the word "to" and changed the word "bad" to "too". Go around and change it to "enter" Change the rotation to Full. If it is ten words, it is designated as "green".

Huang Luzhi's poem: "If it is not March, Yan will return, and Gao Chan will sing with a stick." The word "Yong" first said "hug" and then changed to "occupy", "want", "take" and "want" until the word "Yong" was decided. I heard from Dr. Qian Shenzhong.

Translation:

Wang Anshi wrote a seven-character quatrain: "There is a water between Guazhou and Jingkou, and Zhongshan is only separated by several mountains. Jiang Nanan spring breeze is green, when will the bright moon shine on me? (Jingkou and Guazhou are separated by a water. It seems that Zhongshan is separated by only a few mountains. The spring breeze dyed the coast south of the Yangtze River new green. When will the bright moon shine and send me back to my hometown? " A scholar in Suzhou has the manuscript of this poem at home. At first, it was written as "going again", circled the word "going", annotated the poem as "bad" and rewritten it as "Guo". It was circled again and changed to "into". Later it was changed to "full". In this way, the total * * * chose more than a dozen words to modify, and finally decided to be "green".

Huang Tingjian wrote in a poem: "If March is not for Yan, Gao Chan sings with a stick. Swallows flying back to the south in the autumn equinox are not as busy as nesting in March; Cicadas perched on tall trees are chirping in the branches. " The word "Yong" in the poem was first written as "embrace", then changed to "occupy", then changed to "be", then changed to "take" and then changed to "want" until the word "Yong" was finally decided. I heard from Dr. Qian that the process of writing poetry is like this.