There are clearly two trees. One is off limits, the other is not. One will lead to death...the other to everlasting life.
When the first humans took the fruit of TKGE, they automatically disqualified themselves from eating of the tree of life. Spiritual death followed....physical death took time as sin consumed them and the only means to keep them from dying was out of reach. (Genesis 3:22-24)
dualism leads to death monism leads to everlasting life.
isha upanishad verse 11
He who knows That as both in one, the Knowledge and the Ignorance, by the Ignorance crosses beyond death and by the Knowledge enjoys Immortality
Daniel 12:2
And many of them that sleep in the dust of the earth shall awake, some to everlasting life, and some to shame and everlasting contempt.
gospel of thomas
verse 11
11. Jesus said, "This heaven will pass away, and the one above it will pass away.
The dead are not alive, and the living will not die. During the days when you ate what is dead, you made it come alive. When you are in the light, what will you do? On the day when you were one, you became two. But when you become two, what will you do?"
verse 22
22. Jesus saw some babies nursing. He said to his disciples, "These nursing babies are like those who enter the (Father's) kingdom."
They said to him, "Then shall we enter the (Father's) kingdom as babies?"
Jesus said to them, "When you make the two into one, and when you make the inner like the outer and the outer like the inner, and the upper like the lower, and when you make male and female into a single one, so that the male will not be male nor the female be female, when you make eyes in place of an eye, a hand in place of a hand, a foot in place of a foot, an image in place of an image, then you will enter [the kingdom]."