+ St. Isaac the Syrian, from The Prayers of St. Isaac the Syrian
Then, having successfully passed through the toll-houses and bowed down before God, the soul for the course of 37 more days visits the heavenly habitations and the abysses of hell, not knowing yet where it will remain, and only on the fortieth day is its place appointed until the resurrection of the dead . Some souls find themselves (after the forty days) in a condition of foretasting eternal joy and blessedness, and others in fear of the eternal torments which will come in full after the Last Judgment. Until then changes are possible in the condition of souls, especially through offering for them the Bloodless Sacrifice (commemoration at the Liturgy), and likewise by other prayers .
How important commemoration at the Liturgy is may be seen in the following occurrence: Before the uncovering of the relics of St. Theodosius of Chernigov (1896), the priest-monk (the renowned Starets Alexis of Goloseyevsky Hermitage, of the Kiev-Caves Lavra, who died in 1916) who was conducting the re-vesting of the relics, becoming weary while sitting by the relics, dozed off and saw before him the Saint, who told him: “I thank you for laboring with me. I beg you also, when you will serve the Liturgy, to commemorate my parents” — and he gave their names (Priest Nikita and Maria). “How can you, O Saint, ask my prayers, when you yourself stand at the heavenly Throne and grant to people God’s mercy?” the priest-monk asked. “Yes, that is true,” replied St. Theodosius, “but the offering at the Liturgy is more powerful than my prayer.”
+ St. John of Shanghai and San Francisco, Homily on Life after Death
“Do not let pass any opportunity to pray for anyone, either at his request or at the request of his relatives, friends, of those who esteem him, or of his acquaintances. The Lord looks favorably upon the prayer of our love, and upon our boldness before him. Besides this, prayer for others is very beneficial to the one himself who prays for others; it purifies the heart, strengthens faith and hope in God, and enkindles our love for God and our neighbor. When praying, say thus: ‘Lord, it is possible for Thee to do this or that to this servant of Thine; do this for him, for Thy name is the Merciful Love of Men and the Almighty.’”
“The candles lit before icons of saints reflect their ardent love for God for Whose sake they gave up everything that man prizes in life, including their very lives, as did the holy apostles, martyrs and others. These candles also mean that these saints are lamps burning for us and providing light for us by their own saintly living, their virtues and their ardent intercession for us before God through their constant prayers by day and night. The burning candles also stand for our ardent zeal and the sincere sacrifice we make out of reverence and gratitude to them for their solicitude on our behalf before God.”
+ St. John of Kronstadt
“We ever give thee thanks and magnify thee, O pure Theotokos; we venerate and praise thy childbearing, O full of grace, and we call upon thee without ceasing: Save us, merciful Virgin, in thy love; deliver us from the fearful scrutiny which we must undergo before the demons, and in the hour of our examination suffer not thy servants to be put to shame.”
— Theotokian in the 1st Kathisma hymns at the Matins of Cheesefare Saturday; Triodion Supplement, p. 58
O undefiled, untainted, uncorrupted, most pure, chaste Virgin, Thou Bride of God and Sovereign Lady, who didst unite the Word of God to mankind through thy most glorious birth giving, and hast linked the apostate nature of our race with the heavenly; who art the only hope of the hopeless, and the helper of the struggling, the ever-ready protection of them that hasten unto thee, and the refuge of all Christians: Do not shrink with loathing from me a sinner, defiled, who with polluted thoughts, words, and deeds have made myself utterly unprofitable, and through slothfulness of mind have become a slave to the pleasures of life. But as the Mother of God Who loveth mankind, show thy love for mankind and mercifully have compassion upon me a sinner and prodigal, and accept my supplication, which is offered to thee out of my defiled mouth; and making use of thy motherly boldness, entreat thy Son and our Master and Lord that He may be pleased to open for me the bowels of His lovingkindness and graciousness to mankind, and, disregarding my numberless offenses, will turn me back to repentance, and show me to be a tried worker of His precepts. And be thou ever present unto me as merciful, compassionate and well disposed; in the present life be thou a fervent intercessor and helper, repelling the assaults of adversaries and guiding me to salvation, and at the time of my departure taking care of my miserable soul, and driving far away from it the dark countenances of the evil demons; lastly, at the dreadful day of judgment delivering me from torment eternal and showing me to be an heir of the ineffable glory of thy Son and our God; all of which may I attain, O my Sovereign Lady, most holy Theotokos, in virtue of thine intercession and protection, through the grace and love to mankind of thine only begotten Son, our Lord and God and Savior, Jesus Christ, to Whom is due all glory, honor and worship, together with His unoriginate Father, and His Most Holy and good and life creating Spirit, now and ever, and unto ages of ages. Amen.
— Small Compline: The Supplicatory Prayer to the Most Holy Theotokos