They were all three born into an ordinary life in an ordinary world, and they all wanted something.
They lived their lives and something happened; one day they received a call or opportunity to go on a journey.
They were also given an opportunity to say no to the calling.
They met someone that helped them decide to go on the journey... and to guide them along the way.
They all went through struggle, doubt, guilt, and triumph in different types of situations on their journey.
They all doubted themselves and wanted to give up... and they all chose not to.
They all fell and reached a rock bottom moment... and had come out of it. (Their 'come to Jesus meeting'.)
They were all transformed into a new version of themselves as a result.