Have you ever noticed that in any relationship, if you dislike someone, you start to see faults in them? This constant act of finding faults leads to one becoming scornful (tiraskar) towards that person. So whenever you come into contact with that individual you feel uneasy. This feeling of uneasiness coupled with intense dislike causes one to fear that individual. This implies that you become fearful of those you see faults in.
In reality the whole world is faultless. The other person is just instrumental in bringing forth your own karma. So if you think about it, if you stop seeing faults in others you yourself can become fearless.
Lord Krishna has said, “The path of the vitarag Lord is free of all fears; it is the path of liberation.” How beautifully Lord Krishna has put it!
Dada says that the,“Soul is endowed with resultant bliss! One himself is Soul, no one else can take its happiness away from him. One is free of all pain and suffering by nature. He has tremendous (powerful) grandeur (splendor)! How can any misery affect him?” Therefore if you realize your true blissful Self you can never be miserable.
Moreover you can recognize the root cause of fear and discover ways to overcome any type of fear by understanding the flawless vision of the Self-realized (Gnani). This insight alone will enable you to become peaceful and fearless.