James 1:12 - those who endure will receive the crown of life which God has promised. Mary has received the crown of life by bringing eternal life to the world.
The biblical Mary got to heaven the same way all other Christians get there. John 3;16
I think biblically, Jesus gets top billing for bringing eternal life. John 5:21 "For just as the Father raises the dead and gives them life, even so the Son gives life to whom he is pleased to give it."
1 Thess. 4:17 - we shall be caught up in the clouds to meet the Lord in the air and so we shall always be with the Lord.
Rev. 12:1 - we see Mary, the “woman,” clothed with the sun. While in Rev. 6:9 we only see the souls of the martyrs in heaven, in Rev. 12:1 we see Mary, both body and soul.
2 Thess. 2:15 - Paul instructs us to hold fast to oral (not just written) tradition. Apostolic tradition says Mary was assumed into heaven. While claiming the bones of the saints was a common practice during these times (and would have been especially important to obtain Mary’s bones as she was the Mother of God), Mary’s bones were never claimed. This is because they were not available. Mary was taken up body and soul into heaven.