Do you think that you are the only one who is ever frightened? Are you frightened of those who are powerful, of the things that can hurt you? Do you fear loneliness, incapacity, pain?
What frightens you frightens them, frightens us all. But with a difference.
The difference is that they who serve the world have a harsh and uncaring master, who will never comfort them, now or in the future. They trust in power, but they have only their only refuge in temporary diversions, oblivion, and death.
We trust in our weakness, and God's love. We will never be truly alone, if keep our eyes on His light, and our footsteps in His ways. We are in His hands, always, even when we do not know it. Sometimes we are called to be His hands, His voice, and His touch. But most can be glad that they are not called to great acts, but merely small daily things, such as self denial, and patience, and faithfulness.
This is the nature of our warfare: we rise by falling. This is the law of God's economy.