鬼出电入

Explanation: Rapid changes in clever metaphors, not easy to fathom. 　　Usage: Joint type; as attribute; describe the unpredictable 　　Source: Han Liu, "Huai Tao training": "thunder rain, and should be infinite, the ghost out of electricity into, Lung Hing Luen _set_." 　　Examples: ~, Not clues. (Qing Ji Yun "Notes of Cassia West Magazine") Thesaurus:  Infinite mystery, change constantly, Infinite variety, be most changeful, fantasticality, vagary, vary contingency, there is a sudden change in the situation, make still further progress, change constantly like cloud and wave, lubricity, vagrancy, diversity, ebb and flow contingency, ebb and flow boundless, obliterate, sudden change of a situation, Changing situation, Yunjuefenggui, Ghost out empathic, Ten of nine changes, give oneself a shake and change into another form, Hey presto!, chop and `change keep changing one's plans, opinions, etc