What do you mean by offering sacrifices to Qin?

Once upon a time, there was a poor man who had little food to eat all the year round. He mainly relies on wild vegetables to fill his stomach. Once he ate a wild vegetable and thought it was crisp and delicious. He recommended to the rich that this celery is delicious and crisp. The rich man was really tempted after hearing this, so he got some food. Who knows this is used to eating delicious mouth and stomach. How did You Xiang get this wild vegetable? My mouth is punctured, my stomach can't digest it, and I have to have diarrhea. Many well-meaning people complain about this poor man: why do you need it! Look what she did. The poor also feel embarrassed. Although he doesn't know that the poor and the rich have different stomachs and digestive abilities, he is really kind, and he didn't expect such a result. Later, people used "Qin Xian", "Qin Xian" or "barbaric Qin Xian" or "Qin" to humbly call themselves sincere devotees.