According to the teachings of the Holy Fathers, in order to destroy insensibility man needs a constant, patient, uninterrupted activity against insensibility; he needs a constant, pious, and attentive life.
In this order, and by this succession, the ecclesiastical tradition from the apostles, and the preaching of the truth, have come down to us. And this is most abundant proof that there is one and the same vivifying faith, which has been preserved in the Church from the apostles until now, and handed down in truth.
Fear is a rehearsing of danger beforehand; or again, fear is a trembling sensation of the heart, alarmed and troubled by unknown misfortunes. Fear is a loss of assurance.
Without podvig there is altogether no true Christianity, that is to say, Orthodoxy. See what Christ, the First Ascetic, Himself clearly says; 'Whosoever will come after Me, let him deny himself, and take up his cross, and follow Me' (Mark 8:34). The true Christian, the Orthodox Christian, is only he who strives to emulate Christ in the bearing of the cross and is prepared to crucify himself in the Name of Christ. The holy Apostles clearly taught this. Thus the Apostle Peter writes: 'If when you do well and suffer for it, ye take it patiently, this is accepted with God. For even here unto were ye called, because Christ also suffered for us, leaving us an example, that we should follow his steps' (I Pet. 2:2-21). In precisely the same way the holy Apostle Paul says repeatedly in his epistles that all true Christians must be ascetics, and the ascetic labor of the Christian consists of crucifying himself for the sake of Christ: 'They that are Christians have crucified the flesh together with the passions and lusts' (Gal. 5:24). A favorite expression of St. Paul is that we must be crucified with Christ that we might rise with Him.
Do not hesitate to go late at night to those places where you usually feel afraid. But if you yield only a little to such weakness, then this childish and ridiculous infirmity will grow old with you. As you go on your way, arm yourself with prayer. When you reach the place, stretch out your hands. Flog your enemies with the name of Jesus, for there is no stronger weapon in heaven or earth. When you get rid of the disease of fear, praise Him who has delivered you. If you continue to be thankful, He will protect you for ever.
The soul that is given over to the will of God fears nothing: neither thunder nor thieves nor any such thing. Whatever may come, 'Such is God's pleasure,' she says. If she falls sick she thinks, 'This means that I need sickness, or God would not have sent it.'