The ancients often used "ambitious ambition" to describe lofty aspirations. What does "swan" mean here?

Honghuhong

In ancient times, swans were also called mandarin fish, rainbow, crane, white crane, yellow crane and so on. Guan Zijie: "Today's husband is a swan, spring is in the north, autumn is in the south, and there is no time to lose." The 90th volume of Collection of Literature and Art is quoted from Zhang Hua's Natural History: "Honghu Lake" is often compared to a person with lofty aspirations. Xu Fu-zuo's Flying Shuttle Crossing the River in Ming Dynasty: "I will fight with you to disperse a hundred pots of empty water, and I will lose a swan's ambition." See Swan's Ambition. 2. Swan and Swan. Ruan Wei in the Three Kingdoms "Yong Huai" 43: The Chen She family in Historical Records was the first peasant uprising in China history.

Before the uprising, the founder Chen Shengzai said to the servants when he was hired to farm in the countryside. Now, it has been simplified to a common idiom "swan's ambition" to describe his great ambition. "Sui Shu Five Elements" says: A swan in Taoli turns around Yangshan into a flower forest. Who can say it in Moran?

3. Although "Learning Game" was listened to by a person, he thought it was a swan (hú) with all his heart, so he bowed hard to pay back the money (zhuó) and shot it. The swan flew high.

4. One of the five phoenixes in ancient legend is white. 4. Swan symbolizes ideal and pursuit.