How does Li Bai's poem Difficult to Go express the author's thoughts and feelings?

(1) In the first four sentences of the poem, a friend wrote that out of deep friendship for Li Bai and regret that such a genius was abandoned, he spared no expense in setting up a farewell dinner. In normal times, Li Bai, who is "a drunkard's sake is not wine, but he knows that it is a blessing", will certainly "drink 300 cups at a time" because of this fine wine and food, coupled with the hospitality of his friends. However, this time, he picked up the chopsticks and put them down again. He left his seat, drew his sword, looked around, and was in a daze. The four continuous movements of stopping, throwing, pulling and caring vividly show his inner depression and emotional agitation.

(2) The following two sentences are followed by "hollow" and written on the front as "difficult to walk". The poet used "Sichuan ice jam" and "full of snow" to symbolize the difficulties and obstacles on the road of life, which meant that he thought of the experiences of these two historical figures and increased his confidence. Li Bai is an active user of the world. He is ambitious. He wants to be an outstanding figure in history like Guan Zhong, Sean and Zhuge Liang. However, Li Bai is not the kind of person who is weak in character. From the beginning of "drawing a sword and looking around", he said that he would not be depressed and would continue to pursue it. "I will sit on a fishing rod and lazily lean against the stream, but I suddenly dream of driving a boat and sailing towards the sun." In a daze, the poet suddenly thought of two figures who did not go well politically at first, but made great achievements in the end: one was fishing in Panxi at the age of 90 and met King Wen; One is Yi Yin. Before he was hired by Tang, he dreamed that he was sailing around the sun and the moon. The allusions of "fishing in Bixi" and "daydreaming taking a boat" express his confidence that he can trust and reuse the rulers like the ancients one day and build great achievements.

(3) The rhythm of these four sentences is very short, and they repeatedly lament their bumpy life path in the past, showing the complex psychology of sticking to it and continuing to explore the way out.

(4) In the last two sentences, the poet sang a strong voice full of confidence and prospects. After all, Li Bai was a great poet in the prosperous Tang Dynasty. He was sad, but he was not hurt. The strong demand of being active in the world finally freed him from the pain of wandering. He believes that one day, despite the obstacles ahead, he will ride the wind and waves, hang up the Yun Fan, cross the ocean and reach the other side of the ideal.

The poet used "breaking the waves" as a metaphor for his grand ambition, followed by "sometimes", which affirmed that this ambition would be put into practice. How heroic and straightforward his firm belief and unyielding spirit are!

"Let me stand in Yun Fan and go straight to the bridge and the deep sea" originated from the wind and waves, and created a magnificent and broad image, which was integrated into the poet's grand blueprint of "helping the world and the people"