What does it mean to write about Feng Fei's family and dare to boast in front of people?

The traditional Chinese character of the word Feifengjia is "Feifengjia". In ancient times, the brush was the most difficult to write, with many strokes and relatively complicated structure. It is not easy to write these three words well, and it also lays a good foundation for writing other Chinese characters, which is why the above statement is made. He also said, "Write about Feng Fei's family well, and you are not afraid to travel all over the world." It's a bit like "I'm familiar with 300 Tang poems, and I can recite them if I can't write them." For reference.