Is life full of ups and downs a good thing or a bad thing?

Hehe, it's not a good thing or a bad thing. The truth of life is great sadness and joy. There is no eternal happiness and trouble in a person. People should follow the law and heaven, and heaven should follow the law and heaven, conform to nature and should not be forced. Ups and downs are inevitable. Can only say, to defend yourself, be prepared for danger in times of peace! ! Is it a blessing or a curse? Let it be!