Throw Caution To The Wind Meaning

(idiomatic) To do something despite the risks.

Example: 1998, Mariah Carey, "The Roof":
  I couldn't bear to let you go yet
  So I threw caution to the wind
  And started listening to my longing heart
  And then you softly pressed your lips to mine
  And feelings surfaced I'd suppressed
  For such a long time.