I wrote this in another thread but I think it might be helpful (or not in which case I apologise)
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St. Gregory the Theologian (one of the three only in the EOC) talked about the Tree of Knowledge of Good and Evil. He said that it was indeed a literal tree but also meant something very profound. He identified it as contemplation. He said that Adam and Eve could reach this Knowledge of Good and Evil through contemplation. A process that would take longer if they stayed in the Garden of Eden in the presence of God, who is only Good and thus it is more difficult to understand Evil. Contemplation, ie the constant dwelling of the nous towards God, which was by default granted as they lived in His presence.
Adam and Eve ate from the Tree without this understanding, ie without making a conscious (free will-in his Image) choice between Good and Evil. So, now they had to experience Good and Evil, ie experience all the fruits of Evil, which is Sin and Sin is Death. Before eating the Tree of Life and being unable to make the free will choice between Good and Evil (Life and Death) they are sent to the world.
And see how this all is a choice, when Adam and Eve chose (albeit not the ultimate choice) to disobey God, to chose to obey the Serpent's words instead of God's. They could not make the ultimate choice because they had no Knowledge of Good and Evil. They had not experienced Evil, experienced Death.
Now, we all experience Death. That is we all inherited the *consequences* of Adam's Sin, not the guilt.
But we very much should continue the contemplation. And chose. When you chose Good and contemplating Good, chose God, one thing you find is there is not one point to reach. You are aiming for the eternal, infinite God. You are aiming for eternal Love. And Orthodox Christians describe this ongoing process as Theosis. In reality this means a person aiming to be Christ-like, ie aiming to reach his level of Love and Humility.
I'm sorry if I confused and I'm terribly sorry to my Orthodox brethren if I presented something wrong. I am no scholar so I welcome corrections (in fact I expect them!)
God bless
PS: A good source for Genesis, full of many quotes by Church Fathers about the first days and interpretation can be found in Fr. Seraphim's book Genesis, Creation and Early Man. It was written mainly to give a patristic perspective on the theory of evolution but since it involves looking at Genesis it has rich theology about Adam and Evem, the Garden of Eden and the Original Sin.
The book can be found here:
http://www.amazon.co.uk/gp/product/1887904026/202-2981700-0986245
or here:
http://www.amazon.com/gp/product/1887904026/002-3623571-8632808?redirect=true