This kind of internet name is Qi Ye Meng Hui and Qi Xian Gu Yun.

1. Qiye Menghui: Literally, "Qiye" refers to the seventh night, and "Menghui" is used to describe a kind of memory or emotional recall in a dream. The phrase "Qi Ye Meng Hui" expresses that on a specific night, dreams lead people to go back to the past and relive experiences or emotions.

2. The ancient rhyme of Qixian: "Qixian" refers to an instrument with seven strings, or musical elements related to seven strings. In traditional Chinese music, the lyre (also known as Guqin or Yaoqin) is an ancient musical instrument with a long history and profound cultural connotation. "Qixian" refers to Guqin or music related to Guqin.

Solemn statement: The above content is for reference only, please do not be blindly superstitious.