We must always pray to the Lord to tell us what to do, and the Lord will not let us go astray. Adam was not wise enough to ask the Lord about the fruit which Eve gave him, and so he lost paradise.
Our enemies (demons) fell because of their pride, and call us to follow them, and bring us feelings of praise. And if your soul accepts that praise, then grace will depart, until the soul becomes humble again. And so all your life you must learn the humility of Christ.
Every tribulation reveals the state of our will, whether it inclines to the right or to the left. An unexpected tribulation is called temptation, because it subjects a man to a test of his secret dispositions.
Monastic life is called the art of arts and the science of sciences; for it does not bring perishable blessings akin to the things of this world, which drive the mind from what is best and engulf it; but monk hood promises us wonderful and unspeakable treasures which the ' Eye that not seen, nor ear heard, neither have entered into the heart of man' (1 Cor. ii. 9). Hence, ' we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world' (Ephes. vi. 12). If therefore present existence is but darkness, let us flee from it, let us flee by returning our mind and our heart. Let us have nothing in common with the enemy of God, for 'whosoever will be a friend of the world is the enemy of God' ( James iv. 4). And who can help the enemy of God ? Therefore let us imitate our fathers and, like them, let us seek the treasure existing within our hearts and, having found it, let us hold fast to it in doing and guarding - for which task we were destined from the beginning.
Those who have sinned must not despair. Let that never be. For we are condemned not for the multitude of evils, but because we do not want to repent...
This prayer should never be absent from you: 'Lord Jesus Christ, Son and Logos of the living God, through the Theotokos and all the Saints, have mercy upon me, Thy sinful and unworthy servant.' (This is the actual Jesus Prayer: 'O LORD JESUS CHRIST, SON OF GOD, HAVE MERCY UPON ME, A SINNER.') Always say this prayer both with your mouth and with your mind, day and night, wherever you may be, whether eating, walking, working, or sitting. Always meditate on it, as it benefits you a great deal, frees you here from every evil, delivers you there from eternal Hell, and renders you worthy of going to Paradise, our heavenly country.
Only to the humble does the Lord reveal Himself in the Holy Spirit, but if we do not humble ourselves we shall not see God. Humility is the light in which we may behold the Light which is God, as the Psalmist sang: 'In Thy light we shall see light.'