What does the sentence "Let go of the past and let your heart return to zero" mean?

It means "don't love the past, don't be afraid of the future." No matter whether you have succeeded or failed before, don't be too focused at this moment, put down your baggage and start from scratch.

Analysis:

Life is not easy, don't laugh at others. Every family has a difficult lesson, and everyone has a difficult song. No matter how beautiful the scenery is, there is also cold pain behind it; No matter how happy people are, they also have helpless difficulties in their hearts. No one's life is easy. To laugh at others is to laugh at yourself, and to respect others is to respect yourself. The poorest is nothing more than begging, and the undead will always emerge. Whose life is perfect, whose life is not thin and cool, who can guarantee that life has always been proud. Gold is not enough, no one is perfect.

Sincere and modest, be kind to others and warm yourself. People live for themselves. Don't expect everyone to understand you, and don't expect everything to go well. Know how to comfort yourself when you are tired. No one is distressed, but also be strong; Nobody applauds and flies; No one appreciates it, but it should be fragrant. Life, without a template, is just a heart lamp. When you are bored, have fun and don't lose happiness; When busy, secretly idle, don't lose your health; Stop when you are tired and don't lose happiness.

In ordinary life, I am busy at work and at home. I don't want much progress in my career, but I want a sweet and warm life; I don't want to live a rich life, I just want my family to be healthy and happy. Fate is not accidental, but heart to heart; Friends, not arbitrary, be sincere; Feelings, not children's play, should be cherished; Acquaintance is not new, but real; Understand, not casually, be loyal. True feelings are silent, cherish sincerity.

If the years are like water, you won't know the depth until you leave; Time is like a song, singing the heart sound of Fang Zi. Love is beautiful because it is cherished; Friendship grows with sincerity.

Dragon; Family ties are warm because of interdependence. Between people, it is a kind of fate; Love and affection are a heart. If you love, please cherish; If you are sorry, please be sincere. Love is the strongest, and it will fade after a long time; The deepest love, less response, will be cold; The heart is the hottest, and if you get used to indifference, it will cool down; People are the best. When they are tired, they will leave.