This is the 6939th most frequent Chinese word.
煜
"煜" means "to shine" or "to gleam."
Here, '煜' is used as a verb denoting the action of glowing or shining.
日月同煜，光辉共映。
The sun and moon glow together, their radiance reflected as one.
In this sentence, '煜' is reduplicated as '煜煜', expressing an idea of bright shining frequently attributed to shimmering eyes.
他的眼中煜煜生辉，充满了希望。
His eyes gleamed brightly, full of hope.
Here, '煜' is explained etymologically, indicating its meaning and typical usage in Chinese given names to symbolize brilliance and encouragement.