Sad people find happiness when listening to joyful words, and joyful people find sadness when listening to sad words.
There's a saying that can make a happy person feel sad, and a sad person feel happy.
This is the most miraculous phrase in history:
Everything will pass!

Nothing good or bad lasts forever.
When you fail or experience pain, comfort yourself: Everything will pass!
When you succeed and feel proud, be vigilant: Everything will pass!
Learn to look at things lightly, and people lightly. However, in real life, the trivialities of work and family, dealing with colleague relationships, and the comings and goings of friends... can all affect one's mood, and it's difficult to truly let go.

So, no matter who you meet, they are the people who are meant to appear in your life, not by chance. Approach them with gratitude, and view others' comings and goings lightly.
We currently care about, calculate, have, and haven't – these are just very fleeting moments in the long river of life.
Maintain a childlike sense of wonder, carefully observe beautiful things around you, and learn to cherish what you have.
Holding onto resentment is a form of 'self-harm.' Forgive others, and you will find your own mind peaceful. Also, learn from mistakes and forgive yourself.
Don't be too serious about yourself and life. Try to find joy in the little things, and don't be afraid to be humorous, filling life with laughter.
Focus your energy on creating the life you want, and don't care too much about what others say or do, even rumors or insults. Don't judge them.
'Everything will pass!'
A simple phrase, yet full of life wisdom.
When you're feeling triumphant, it reminds you not to be arrogant or boastful, not to become too intoxicated, or to be carried away by pride.
When you face setbacks and pain, it encourages you not to give up, not to become disheartened, and not to be pessimistic.
'Everything will pass! Everything will also begin again!'
