The Main Character's decision to change results in success
In an Actual Dilemma, the Main Character cannot succeed if he keeps to the path he began on. Unless he changes, he is doomed to failure. Of course, the Main Character cannot see the future and therefore can never be absolutely sure if he should change or not. That is why Main Characters must often make a "leap of faith" at the moment of climax and decide to Change or Remain Steadfast. Other times, the Main Character is slowly drawn towards his Resolve of Changing or Remaining Steadfast, however it is still clear which way he's gone by the end of the story. In stories where the Main Character Changes and succeeds as a result, he is said to have been in an Actual Dilemma.