The world of mortals is not the meaning of love.
1. One refers to the secular world.
2. The second refers to the bustling secular life in this world.
3. Three refers to the flying dust in the busy city, describing prosperity and also refers to a lively place.
4. The four fingers refer to the human world.
5. The five fingers refer to the secular world; the original meaning of Hongchen in ancient times refers to the prosperous city. It comes from a poem in "Ode to the Western Capital" by Ban Gu, a writer and historian of the Eastern Han Dynasty. It comes from the dust raised by horses and carriages on dirt roads in the past, and is a metaphor for the road to fame and wealth.