The Church believes in the Communion of Saints,people in heaven can pray for us just as anyone on Earth may pray for you.
"We're all connected" as the old telephone as ran.
So we The Church Militant) pray through Mary and the Saints
Since the days of the apostles, the Catholic Church has consistently condemned the sin of idolatry. The early Church Fathers warn against this sin, and Church councils also dealt with the issue.
The Second Council of Nicaea (787), which dealt largely with the question of the religious use of images and icons, said, "[T]he one who redeemed us from the darkness of idolatrous insanity, Christ our God, when he took for his bride his holy Catholic Church . . . promised he would guard her and assured his holy disciples saying, ‘I am with you every day until the consummation of this age.’ . . . To this gracious offer some people paid no attention; being hoodwinked by the treacherous foe they abandoned the true line of reasoning . . . and they failed to distinguish the holy from the profane, asserting that the icons of our Lord and of his saints were no different from the wooden images of satanic idols."
The Catechism of the Council of Trent (1566) taught that idolatry is committed "by worshipping idols and images as God, or believing that they possess any divinity or virtue entitling them to our worship, by praying to, or reposing confidence in them" (374).
"Idolatry is a perversion of man’s innate religious sense. An idolater is someone who ‘transfers his indestructible notion of God to anything other than God’" (CCC 2114).
