花开若相惜花落若相离
[huā kāi ruò xiāng xī huā luò ruò xiāng lí]
Literally means to cherish each other when the flower blooms and part ways like the fallen flowers. Metaphorically, it expresses a view towards relationships - valuing and holding onto good times together, accepting and calmly facing separations or farewells, often conveying bittersweet emotions.