Even though Mary Magdalene turned away from her sin to follow Jesus, it's easy to think how she may have felt spiritual desolation from time to time. When we're in the face of desolation, the Lord Jesus, our captain says: Rise up and fight! Oppose your enemy.
Repentance and turning toward God starts with confession and turning away from our sins, but in order to sustain that conversion, we must make prayer a habit in our daily lives. The Lord wants to do something great in each one of us, but to do that, he needs our cooperation and he needs us to pray.