Elder St. Porphyrios on the Indwelling of the Spirit…
The person who is worthy of God is filled with the Holy Spirit. He has
divine grace. God, in the mystery of Christ, gives him joy, peace, meekness, and love. He gives him those characteristics enumerated by Saint Paul: The fruit of the Spirit is love, joy, peace, long-suffering. gentleness, goodness, faith, meekness, continence… God knows no past, present or future. Neither is there any creature that is not manifest in Heb. 4:13 His sight, but all things are naked and opened to His eyes… Thus also
the mysteries of God are revealed to the person who possesses a healthy soul, and His counsels are made known to him to the degree that God permits.
There are, however, preconditions for divine grace to come and dwell in a person. Only a person who has humility receives these gifts God; he attributes them to God and he uses them for His glory. The good, humble, devout man who loves God, the man who possesses virtue, is not, by the grace of God, deluded or led astray. He feels in his
heart that he is truly unworthy, and that all those things are given to him so that he may become good, and for that reason he makes his ascetic struggle.
On the contrary, the grace of God does not go to egotists, to people who have no awareness of what is happening to them. The person who has Luciferic egotism believes that he is filled with divine grace, ^but he is deluded; he is a man of the devil.”
– ‘Wounded by Love’