As the saying goes, what does it mean to go out for jiaozi and go in for noodles?

In the hearts of China people, jiaozi represents perfection and reunion. When a person is about to embark on a journey, his family will pack a meal to see him off in jiaozi, representing his family's thoughts and blessings. Jiaozi looks like an ancient silver shovel and an ingot. I hope he will go out and get rich, and I also expect him to go home and reunite with his family as soon as possible.

After a long trip, his stomach is weak, pasta is easy to digest, and noodles are thin and long, which looks like a rope. Noodles symbolize "long" and "constant". The family hopes that after eating this bowl of noodles, he can recover his wandering heart, stay firmly at home and live in a down-to-earth manner.