I'll give what seem to be the most salient meanings that come to mind, there may be others.
1. God is the Creator
2. Creation is not God, but creation is good (This is contrary to pantheism, but not necessarily panentheism)
3. The creation, which is created good, implies a Good Creator
4. God created in an orderly fashion and creation has order (God brings order out of chaos, i.e. out of "tohu wa-bohu")
5. Humanity is created in the image of God
6. Humanity is created for relationship with the Creator (the image of God and humanity walking together in the cool of the day)
7. Humanity is created to flourish in the presence of the divine
8. Sin is destructive and reveals the inherent fragility of life, and dependence on the Creator (they see their "nakedness")
9. Sin is not an essential part of creation
10. Sin adversely affects human moral sensibilities (indicated by the "It's not me who is to blame, but her")
11. Sin is not commensurate with God's intention for creation (implied by the limits of death and finitude imposed by the divine).
12. Humanity, under their own power, cannot "make things right" (implied by the expulsion from the garden which is guarded by an angel with a flaming sword to keep humanity from the tree of life).
These are some that come to mind, there may be others. Hopefully, this list shows the rich meaning that is embedded in those opening chapters. Much of the rest of the scriptures, including the gospel, only make sense in light of these meanings. Now, if someone believes all that matters is if they believe the account is historical fact, then they are missing the rich meaning the account was intended to convey. In fact, what is most needed is not a belief in the historicity of the account, but an understanding of the meaning, and how the meaning informs the rest of the scriptures.
Maybe it helps to know the Hebrew of the text and see how poetic is reads and the inherent imagery, even in the names. Most Hebrew readers recognize this, I think. Moreover, even early Christian exegetes understood some of the issues that arise if one attempts to read those opening chapters literally, and they certainly understood the grave error involved in acting as if a literal reading was all that was necessary. If anyone knew how to pull out deep meanings within the scriptures it was those early Christian exegetes.