What are some of the statements that have been made about the main theme of "The Road to Shu"?

The "Road to Shu" is an old Lefu title, Li Bai adopted the ancient Lefu title and introduced a new style, breaking the traditional Lefu narrative fugue writing style, focusing on the description. He vividly depicted the strange and thrilling mountain and river scenery on the road from Qin to Shu with his rich imagination, unrestrained language, and robust style. He writes about the difficulty of the road from Qin to Shu and the journey of life, and expresses his worries and concerns about the affairs of the country. The first four lines of the poem is the general outline of the whole piece, and then by the origin of the Shu Road, history, the Shu Road along the way of the high and steep, eerie, sinister and volatile social conditions, etc., the lens of a group than a group of thrilling. The emotional structure of the poem with big ups and downs gives people a sense of movement; the grandeur of swallowing the mountains and rivers flowing in it gives people a strong shock that cleanses the mind. The whole poem is magnificent, bold style, sprawling, unpredictable, everywhere in danger, showing the poet's outstanding artistic talent and rich imagination, fully embodies the characteristics of Li Bai's romanticism.