But No Where in The Word of God are the Body of Christ told to pray to dead folks regardless of where they are.
According to my Bible (RSV-CE) In Hebrews 12:22-24 St. Paul encourages us to approach, not only Christ, but the angels and saints. In Revelation 5:8 we see those saints offering up those prayers before Gods throne.
Hebrews 12:18 For you have not come to what may be touched, a blazing fire and darkness and gloom and a tempest 19 and the sound of a trumpet and a voice whose words made the hearers beg that no further messages be spoken to them. 20 For they could not endure the order that was given, If even a beast touches the mountain, it shall be stoned. 21 Indeed, so terrifying was the sight that Moses said, I tremble with fear. 22 But you have come to Mount Zion and to the city of the living God, the heavenly Jerusalem, and to innumerable angels in festal gathering, 23 and to the assembly of the firstborn who are enrolled in heaven, and to God, the judge of all, and to the spirits of the righteous made perfect, 24 and to Jesus, the mediator of a new covenant, and to the sprinkled blood that speaks a better word than the blood of Abel.25 See that you do not refuse him who is speaking. For if they did not escape when they refused him who warned them on earth, much less will we escape if we reject him who warns from heaven. 26 At that time his voice shook the earth, but now he has promised, Yet once more I will shake not only the earth but also the heavens. 27 This phrase, Yet once more, indicates the removal of things that are shakenthat is, things that have been madein order that the things that cannot be shaken may remain. 28 Therefore let us be grateful for receiving a kingdom that cannot be shaken, and thus let us offer to God acceptable worship, with reverence and awe, 29 for our God is a consuming fire.
When you read the passage in the context the writerdesigned, you will see your error, hopefully.
Show me where these bowls of the prayers become petitions, as in praying to these holding the bowls.
Hebrews 12 says no such thing and Revelation 5 does not indicate those prayers are prayers of others offered to them to offer to God.