“We ought to have the most lively spiritual union with the heavenly inhabitants, with all the saints, apostles, prophets, martyrs, prelates, venerable and righteous men, as they are all members of one single body, The Church of Christ, to which we sinners also belong, and the living Head of which is the Lord Jesus Christ Himself. This is why we call upon them in prayer, converse with them, thank and praise them, It is urgently necessary for all Christians to be in union with them, if they desire to make Christian progress; for the saints are our friends, our guides to salvation, who pray and intercede for us.”
When your faith in the Lord, either during your life and prosperity, or in the time of sickness and at the moment of quitting this life, grows weak, grows dim from worldly vanity or through illness, and from the terrors and darkness of death, then look with the mental eyes of your heart upon the companies of our forefathers, the patriarchs, prophets, and righteous ones:
St. Simeon, who took the Lord up in his arms, Job, Anna the Prophetess, and others; the Apostles, prelates, venerable Fathers, martyrs, the disinterested, the righteous, and all the saints.
See how, both during their earthly life and at the time of their departure from this life, they unceasingly looked to God and died in the hope of the resurrection and of the life eternal, and strive to imitate them.
These living examples, which are so numerous, are capable to strengthen the wavering faith of every Christian in the Lord and in the future life.
Those Christian communions who do not venerate the saints and do not call upon them in prayer lose much in piety and in Christian hope. They deprive themselves of the great strengthening of their faith by the examples of men like unto themselves.
“Possibly a contentious unbeliever will maintain that we worshiping images in our churches are convicted of praying to lifeless idols. Far be it from us to do this. Faith makes Christians, and God, who cannot deceive, works miracles. We do not rest contented with mere colouring. With the material picture before our eyes we see the invisible God through the visible representation, and glorify Him as if present, not as a God without reality, but as a God who is the essence of being. Nor are the saints whom we glorify fictitious. They are in being, and are living with God; and their spirits being holy, the help, by the power of God, those who deserve and need their assistance.”
+ St. John of Damascus, Treatise on Images
“Let us be happy, beloved brothers and sisters that we belong to the Holy Orthodox Church, worthily and rightly glorifying the Most Holy Sovereign Theotokos on this eminent day out of all the days of the year with special solemnity. There exists on earth many societies and entire governments that do not consider the need nor the obligation to call upon and glorify the Queen of heaven and earth, the Mother of Our Divine Lord Jesus Christ, and other saints and angels; to submissively serve Her lovingly, as the true Mother of God. Sadly in Russia nowadays we have heretics (among us) who actively dishonor the Mother of God, the saints, their icons, their relics and their festivals. O, if only they also unanimously with us glorified the worthy Queen of heaven and earth!”
— St. John of Kronstadt, Sermon on the Dormition of the Theotokos