Thayer's Greek Lexicon

 1. to open by dividing or drawing asunder, to open thoroughly
(what had been closed)
  1) a male opening the womb (the closed matrix), i.e. the first-born
  2) of the eyes and the ears
  3) to open the mind of one, i.e. to cause to understand a thing
1c1. to open one's soul, i.e. to rouse in one the faculty of
understanding or the desire of learning