Shen Yan's usage can illuminate the sun and the moon, which means that it can be compared with their brilliance, and it can be used as a mirror, which means that both the sun and the moon can testify. Moral: I am very firm in my words and deeds.
Example:
1. In the third round of A Dream of Red Mansions, Cao Xueqin wrote a couplet of Rongtang: the sun and the moon shine on the stage, and the blue light shines in front of the hall.
2. The fifty-third chapter of A Dream of Red Mansions: The meritorious deeds shine on the sun and the moon, and the descendants of fame are endless.
This heart can shine the sun and the moon, and it can make you realize your ambition.