The answer
St. Ephrem thinks that in the Garden of Eden, there were two different trees. One symbolizes the Holy of Holies while the other symbolizes the sanctuary. The Tree of the Knowledge of Good and Evil is the gate that leads to the Tree of Life.457
Fr. Tadros Yacoub Malaty
Notes
457 Ephrem the Syrian, Hymns on Paradise, trans., Sebastian P. Brock, (St Vladimir’s Seminary Press, 1990), 3:13: p. 95.