“Unhappy fortune! By my brotherhood, The letter was not nice, but full of charge, Of dear import, and the neglecting it May do much danger.” (5.2. 17-20) In this quote Friar Laurence explains to Friar John that he has brought danger to Romeo.
"I believe that the answer to the question asked above is that the mood of Mona Lisa is created by the essence of how Mona Lisa is portrayed and the smile it shows and other mysteries it has."