In the Korean religion of Jeungism, the term Gaebyeok refers to a sudden change in nature, society and human beings. ==Great Opening 開闢== Jeungism calls a sudden change in culture, human and nature, Gaebyeok. Both syllables, gae (開) and byuk (闢), mean `to open.` The word comes from the Sino-Korean phrase cheon-ji-gae-byeok (天地開闢).....