We always evade it, fear comes up but we have never been told it’s natural. Instead of exploring it and delving into it, we try to suppress it, run from it, and intern we shit ourselves. The very avoidance of it brings tension and often more fear:

What is needed, rather than running away or controlling or suppressing or any other resistance, is understanding fear; that means, watch it, learn about it, come directly into contact with it. We are to learn about fear, not how to escape from it. — J. Krishnamurti

Where does it arise from? What happens when you face it? What is the worst that can happen? Does being fearful change the outcome? Going through fear we become fearless.