What poems and idioms can describe a weak heart?

The straight bamboo with a weak heart is my friend, the fresh water is my teacher

Wealth and honor are like floating clouds to me

Look at the flowers blooming and falling in front of the hall, and the clouds in the sky. Juan Yunshu

If you are not indifferent, you will not be clear-minded, and if you are not tranquil, you will not be far-reaching

Life is like flowers and trees, withered and prosperous, life is as short as a meteor, and time is as ruthless as a sword. Wind, frost, rain, and snow are natural, and joy, anger, sorrow, and joy are human nature.

Walk your own path...