What features does the last sentence of Looking at the Sea reveal about poetry?

Looking at the Sea is a work of Cao Cao, which expresses his deep feelings for the natural landscape and his ambitions and ideals. The last sentence "fortunately, even singing is an expression of poetry" shows that poetry is used to convey and express people's thoughts and feelings.

Fortunately, I can express my feelings and ambitions with poetry. Here, "fortunately, even" means to be glad that you can express your feelings through poetry, while "singing with ambition" points out the importance and characteristics of poetry as an expression tool.

Generally speaking, this sentence reveals three main characteristics of poetry:

1. Expressing emotions and thoughts: Poetry is an art form deeply rooted in human culture, which is used to express our emotions, thoughts, ambitions and ideals.

2. Musicality and rhythm: Poetry usually has musicality and rhythm, which makes them have a strong artistic appeal when reading or singing.

3. Symbols and metaphors: Poetry often uses symbols and metaphors to convey deeper meanings, which makes the expression of poetry more diverse.

Therefore, the phrase "fortunately, even, reciting poems is chanting ambitions" not only expresses Cao Cao's awe of nature, but also shows his attitude and ideal towards life, and also reveals the importance and characteristics of poetry as an expression tool.