Happiness [1] is a subjective feeling, a heartfelt feeling and a kind of love. Happiness is taken care of like a flower. Everyone's happiness can be different, and there is no fixed pattern to be found. Therefore, we hope that this book will not give you a conclusive answer, but hope to find a different attitude towards life through this "door of happiness".

We know that "the meaning of life depends on our understanding of life", not a lion who wakes up every day and runs, nor an antelope who wakes up every day and runs for his life.

In fact, happiness in life is very simple, not money or power. This is a trivial matter. Family eating together is happiness, and having a complete home is happiness. Everyone has happiness around him, but he hasn't found it yet.

Happiness is sometimes just a momentary touch, which will make a person obsessed all the time. Happiness is contentment, and happiness is contentment! Only by actively seeking happiness can one get happiness.

Chinese and western philosophers have different opinions on the theory of happiness, and some hold that spiritual happiness is happiness; Some advocate that personal happiness is happiness; Some people argue that all happiness is a feeling of happiness.