It seems that what we need to know about the Garden of Eden, is that it contains the Tree of Life, which is Christ. The single most important thing that we can do in this life, is to reach out, take from the Tree . . . and live forever in Eternity with Him.
That Tree in the Garden is a future reflection of Jesus on the Cross . . . that we are to reach out and figuratively eat of His Flesh, the Bread of Life, so that we would live forever. There is only one "thing" that grants Eternal Life, and it is Christ. So, whether we refer to Christ as the Tree of Life, Living Water, the Bread of Life, etc . . . it does not matter. What matters is that we turn to Him so that by reaching out and partaking of His Fruit, we would be relieved from the Curse of the Lord.
Galatians 3:13 NLT - "But Christ has rescued us from the curse pronounced by the law. When he was hung on the cross, he took upon himself the curse for our wrongdoing. For it is written in the Scriptures, "Cursed is everyone who is hung on a tree."
How does He disassociate this Curse from our hearts? Colossians 9-15 makes it perfectly clear. But the question is this: Can we stop being ashamed of the Most Holy Word "Circumcision?"
Colossians 2:9-15 NLT - "For in Christ lives all the fullness of God in a human body. 10 So you also are complete through your union with Christ, who is the head over every ruler and authority. 11 When you came to Christ, you were "circumcised," but not by a physical procedure. Christ performed a spiritual circumcision--the cutting away of your sinful nature. 12 For you were buried with Christ when you were baptized. And with him you were raised to new life because you trusted the mighty power of God, who raised Christ from the dead. 13 You were dead because of your sins and because your sinful nature was not yet cut away. Then God made you alive with Christ, for he forgave all our sins. 14 He canceled the record of the charges against us and took it away by nailing it to the cross. 15 In this way, he disarmed the spiritual rulers and authorities. He shamed them publicly by his victory over them on the cross."