The tree of life from Northern Antiquities,
painted by Oluf Olufsen Bagge.
Source: Wikimedia Commons.
World tree or cosmic tree is the bridge (the Axis Mundi) built across the river of the water of life to unite humanity into one harmonious people. It is the tree of life described in the Holy Bible as follows,
On each side of the river was the tree of life, which bears fruit twelve times a year, once each month; and its leaves are for the healing of the nations. (Revelation 22:2) "GNT"
The tree of life: world tree (cosmic tree)
The two sides of the river are Yin and Yang. The cosmic tree is the bridge uniting Yin (one side of the river) and Yang (the other side of the river) to form Yang (Yinyang).
Yin is the darkness of the past and Yang is the light of the future. Therefore the world tree (the tree of life) unites the past and the future to form the present. The future is heaven, the past is the underworld, and the present is the terrestrial world.
The cosmic tree is the new Jerusalem where the past is the 'Past Light Cone', the future is the 'Future Light Cone', and the present is the 'Hypersurface of the Present'. The past, separated from the future, is the underworld or hell (darkness).
But the past is transformed into Paradise when united with the future. The point of unity is the square of the new Jerusalem. Therefore the past and the future are two circles united to form one circle. And the present is the square enclosing the circle to form the Mandala. This means that the tree of life is the light cone (the circle). The square is the four cardinal points of the earth and the circle is the sky above the earth. The circle (the sky) is heaven, the square is Earth, and the Mandala is is the tree of life where heaven and earth are united.
Heaven and earth are united during Annular Solar Eclipse. The single 'Ring of Light' formed during the annular solar eclipse is the circle of the Mandala. The circle or 'Ring of Light' is the halo called the light of the glory of God.
The city does not need the sun or the moon to shine on it, for the glory of God gives it light (Revelation 21:23) "NIV"
The glory of God: the halo (the circle) or the 'Ring of Light'
The city: the square (the new Jerusalem)
The glory of God gives it light: the circle or 'Ring of Light' is the light of Square (the new Jerusalem)
Note that the moon and the sun are above the Earth during an annular Solar Eclipse unlike during a Lunar Eclipse. Lunar eclipse implies chaos or Yin because the past (night) is separated from the future (day) by the earth. This means that the Lunar Eclipse is the tree of the knowledge of good and evil.
The moon below the earth was hell or the grave, and the sun above the earth was heaven. The ascension of the moon from beneath the Earth to above the Earth during an Annular Solar Eclipse is the resurrection of the dead. It is the destruction of death. And the Annular Solar Eclipse, unlike the Lunar Eclipse, is the tree of life.
The "Ring of Light' formed during an Annular Solar Eclipse is the reconciliation (the unity and the agreement) made possible by the bridge (the cosmic tree). This means that the reconciliation is the light. Night is a blue pigment, day is a yellow pigment, and the reconciliation is the green pigment formed when the blue and yellow pigments are mixed together.
The green pigment (the reconciliation) is the Chlorophyll called the leaves of the tree of life. This explains why the leaves of the tree of life are synonymous with reconciliation (healing).
Its leaves are for the healing of the nations: the leaves are for reconciling the nations.
The term "healing" implies conflict resolution or to resolve/settle differences.
Therefore the tree of life is about uniting different perspectives of the same thing to form the harmony known as the cosmos. Hence the tree of life or World Tree is called Cosmic Tree.