Fear is such a powerful emotion for humans that when we allow it to take us over, it drives compassion right out of our hearts.
When you set off on the path, the first thing you do is surrender yourself to a greater power, for you will encounter things you will not understand. You will understand things only with your heart, and that can be a little frightening. For a long time, the journey will seem like a Dark Night, but then any search is an act of faith. But God, who is far harder to understand than a Dark Night, appreciates our act of faith and takes our hand and guides us through the Mystery.