What is the meaning of "double divination and single divination"

Something that indicates uncertainty or uncertainty. "Double divination and single divination" is slang, which is usually used to express uncertainty or uncertain things. Specifically, "double hexagrams" refers to two hexagrams, that is, two hexagrams, while "single hexagrams" refers to one hexagram. Because divination is uncertain, "double divination and single divination" can be understood as an uncertain thing. It has been divined many times, but it is still uncertain. This slang is usually used for entertainment or informal occasions. It has no serious linguistic significance, but is only used for entertainment and recreation.