The cosmic tree is white light, and the different types of trees are different colours of light formed when white light is passed through a glass block or prism.
In other words, the trees on the river bank are the different colours constituting a rainbow - the symbol of unity in diversity.
As different people have different names for the tree of life so human societies are categorised into different trees.
We understand from the knowledge of Metatron's Cube that the tree of life is the cosmos (the holy city). It is the same tree called yggdrasil, egi ero fa, gaokerena, holy of holies, mandala, supreme ultimate Taiji, spacetime, etc.
We understand from the digital structure of the human hand that every human being is a tree by the river of life.
The ten digits of the left and right hands constitute bagua - the tree of life. But no human being is the tree of life until he eats the fruit of the tree.
The world is a forest until humans start eating the fruit of the tree of life. They that haven't ate of the fruit of life are wild trees in a forest. They will be transformed from wild trees to trees of life the moment they ate the fruit of life.
All of humanity will be changed from a forest into the garden of God the moment the whole world ate the fruit of life. The forest will be burnt down and substituted by a garden.
Example: the burning of the Amazon rain forest was symbolic of the destruction of the forest home of humans who have learnt to dwell in the wild. The same humans will be transformed into a people that lives in the beautiful garden of God.
"For we know that all creation has been groaning as in the pains of childbirth right up to the present time." (Romans 8:22) "NIV"
Transforming human population into a peaceful and harmonious society is planting trees in a garden and removing Carbon (IV) Oxide from the atmosphere
"Then shall all the trees of the wood rejoice" (Psalm 96:12-13) "KJV"
The melting of the polar ice caps will be reversed, global warming will be reversed, and humans will cooperate to conserve and preserve the ecosystem after they have eaten the fruit of the tree of life and changed into trees in the garden of God.
Humans will defeat desertification and conquer the desert by planting trees.