I prefer to think of them as something that only happened in Darth Vader's mind. He woke up, said "wow what a horrible dream", then went to work chasing after the Death Star plans for the opening of A New Hope.
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'