Here, D.Jean, I'll help you out... Catholics pray that the Saints will pray for them as intercessories.
For example:
The Penitential Rite, spoken in unison during every Mass:
Penitential Rite
I confess to Almighty God,
and to you, my brothers and sisters,
that I have sinned through my own fault.
we lightly strike our breast
in my thoughts and in my words,
in what I have done,
and in what I have failed to do;
and I ask blessed Mary, ever virgin,
all the angels and saints,
and you, my brothers and sisters,
to pray for me to the Lord our God.
May almighty God have mercy on us,
forgive us our sins,
and bring us to everlasting life.
Amen.
If you believe that heaven is a place where all the Saints are in constant communion with the Godhead (as Catholics do), then it is only natural that they might ask specific Saints with specific interests to intercede on their behalf in regard to those interests.
For example, the beautiful Hail Mary:
Hail Mary, full of grace, the Lord is with You.
Blessed art Thou
And blessed is the Fruit of thy womb, Jesus.
Holy Mary, Mother of God, pray for us sinners now
And at the hour of our death.
Amen
Or the Prayer to St. Jude:
O most holy apostle, St. Jude, faithful servant and friend of Jesus, the church honors and invokes you universally, as the patron of hopeless cases, of things almost despaired of. Pray for me, I am so helpless and alone.
Make use, I implore you, of that particular privilege given to you, to bring visible and speedy help where help is almost despaired of. Come to my assistance in this great need that I may receive the consolation and help of heaven in all my necessities, tribulations, and sufferings, particularly (state your request) and that I may praise God with you and all the elect forever.
I promise, O blessed St. Jude, to be ever mindful of this great favor, to always honor you as my special and powerful patron, and to gratefully encourage devotion to you.
Amen.
And here is a more coherent explanation... with Biblical references:
Quote:Fundamentalists often challenge the Catholic practice of asking saints and angels to pray on our behalf. But the Bible directs us to invoke those in heaven and ask them to pray with us.
Thus, in Psalm 103 we pray, "Bless the Lord, O you his angels, you mighty ones who do his word, hearkening to the voice of his word! Bless the Lord, all his hosts, his ministers that do his will!" (Ps. 103:20-21). And in the opening verses of Psalms 148 we pray, "Praise the Lord! Praise the Lord from the heavens, praise him in the heights! Praise him, all his angels, praise him, all his host!"
Not only do those in heaven pray with us, they also pray for us. In the book of Revelation, John sees that "the twenty-four elders [the leaders of the people of God in heaven] fell down before the Lamb, each holding a harp, and with golden bowls full of incense, which are the prayers of the saints" (Rev. 5:8). Thus the saints in heaven offer to God the prayers of the saints on earth.
Angels do the same thing: "[An] angel came and stood at the altar [in heaven] with a golden censer; and he was given much incense to mingle with the prayers of all the saints upon the golden altar before the throne; and the smoke of the incense rose with the prayers of the saints from the hand of the angel before God" (Rev. 8:3-4).
Jesus himself warned us not to offend small children, because their guardian angels have guaranteed intercessory access to the Father: "See that you do not despise one of these little ones; for I tell you that in heaven their angels always see the face of my Father who is in heaven" (Matt. 18:10).
Because he is the only God-man and the Mediator of the New Covenant, Jesus is the only mediator between man and God (1 Tim. 2:5), but this in no way means we cannot or should not ask our fellow Christians to pray with us and for us (1 Tim. 2:1-4). In particular, we should ask the intercession of those Christians in heaven, who have already had their sanctification completed, for "[t]he prayer of a righteous man has great power in its effects" (James 5:16).