Paul brings out a series of comparisons between Adam and Christ. He wrote:
Therefore as by the offence of one judgment came upon all men to condemnation; even so by the righteousness of one the free gift came upon all men unto justification of life. For as by one man's disobedience many were made sinners, so by the obedience of one shall many be made righteous. (Romans 5:18, 19)
Adam gave us the legacy of death, but Christ gives us the gift of eternal life.
Man lost the right to the tree of life in the Garden because of his disobedience. God drove him out of the Garden and away from the tree of life:
So he drove out the man; and he placed at the east of the garden of Eden Cherubims, and a flaming sword which turned every way, to keep the way of the tree of life. (Genesis 3:24)
Christ will lead us back to the tree of life, not just to the Garden of Eden, but also to the Paradise of God. Jesus promised it. He said:
And, behold, I come quickly; and my reward is with me, to give every man according as his work shall be. I am Alpha and Omega, the beginning and the end, the first and the last. Blessed are they that do his commandments, that they may have right to the tree of life, and may enter in through the gates into the city. (Revelation 22:12-14)