The Tree of Life and the Tree of the Knowledge of Good and Evil

A river went out of eden to water the garden, and from thence it was parted and became into four heads. The tree of life also in the midst of the garden, and the tree of the knowledge of good and evil. So these are two trees. They bring forth fruit that produce something. One produces the knowledge ofgood and evil, and the other produces eternal life. Why? Well, i'll get to that bit....