Generally speaking, there should be Jin Lan Spectrum, and the general reference size of Jin Lan Spectrum is 16 cm long, 9 cm wide and 6 pages. Every page of paper is printed with a scarlet picture of "Seawater Orchid", and the title page is also printed with a poem: The loyalty and the forgotten old rain couplet of Taoyuan Alliance hangs a sword. Ji Zi Zou Nanqian Jiaozi wants to retire from the past and visit the mink later. One day is like bamboo, and it is as cold and salty as the sky. Kong Zhao wrote down the name, age, date of birth and subsequent pages of the worshippers. China's classic novel Romance of the Three Kingdoms describes a story in which Liu Bei, Guan Yu and Zhang Fei became sworn friends in Taoyuan. Their sincere friendship of "not seeking to be born on the same day in the same year, but seeking to die on the same day in the same year" is regarded as a beautiful and precious friendship, so it is likened to an orchid with a fragrant smell, and its meaning is taken from the Book of Changes, "Two people are one, and their benefits are broken; Sad words stink like blue. " This shows that the origin of Jin Lan customs can be traced back to the pre-Qin period. According to the relevant records in Taiping YuLan (Volume 407) and Lu Wu's Travels, it can be speculated that the custom of making obeisance to Jinlan began to spread in the Three Kingdoms period at the latest. In the Tang Dynasty, there was a more elaborate oath ceremony. In the Tang Dynasty's Miscellanies of Yunxian, it was said: "Every close friend of Dai wrote a book in a thin book, burning incense to tell his ancestors, and the number was Bo." Here, what Dai called Bo may be the early embryonic form of Pu, but it is used to "burn incense to tell one's ancestors", not as a certificate of mutual exchange. After the Ming and Qing Dynasties, a set of very exquisite sacrificial ceremonies was gradually formed among scholars and officials. When taking the oath, everyone has to write a written document, which is usually folded into several times the size of an envelope with the words "Lan Pu" or "Jin Lan Pu" written on the cover, in which his family tree is written. After offering sacrifices to ancestors, exchange this position with each other, and then brothers. The sworn brothers between ordinary people generally do not need to change their posts, and they are often called brothers after telling each other their names, ages and birthdays.

But now a lot of etiquette is omitted. As long as you rub the soil and incense, sincerely pray for heaven and earth, the ceremony will be completed! ~