pre·ex·is·tence /-ɪgˈzɪstən(t)s/
  先在,前世,靈魂先在
  Pre·ëx·ist·ence n.
  1. Existence in a former state, or previous to something else.
     Wisdom declares her antiquity and preëxistence to all the works of this earth.   --T. Burnet.
  2. Existence of the soul before its union with the body; -- a doctrine held by certain philosophers.
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  preexistence
       n : existing in a former state or previous to something else