"Regarding 'setting free', the passage from The Magic Flute occurs to her"
Memorial to Schikaneder's performance in the opera - Theater an der Wien, Vienna, (2010)
Creative Commons Attribution Share AlikeMemorial to Schikaneder's performance in the opera - Theater an der Wien, Vienna, (2010) - Credit: Yair Haklai

  The lines are from Act I, Scene 3 of Mozart's The Magic Flute (1791), spoken by the lord Sarastro to his captive and elusive love-object Pamina. 

 

The Magic Flute by Wolfgang Amadeus Mozart

 

Online text of the libretto, by Emanuel Schikaneder (1751-1812)