Green
The color green is almost exclusively used in connection with plants in the Bible, and the meaning is closely connected to the meaning of plants as well. Plants, in general, represent facts, knowledge that we can gather from the world. Green plants are ones that are alive and growing. Since life represents love and goodness, it makes sense that green plants are facts that have the potential for good use. It also indicates that they are the kinds of things we learn through directly through our senses, since to identify green plants we need to actually see the greenness.
(References: Apocalypse Explained 507; Apocalypse Revealed 426; Arcana Coelestia 7691)
Heaven and Hell #59
59. THE ENTIRE HEAVEN, AS ONE WHOLE, RESEMBLES ONE MAN
That heaven in its whole complex resembles one man is an arcanum not yet known in the world, but it is very well known in the heavens. To know this and the specific and particular things relating to it, is the chief thing in the intelligence of the angels there. Indeed, on it many things depend which, without it as their general principle, would not enter distinctly and clearly into the ideas of the angels' minds. Since they know that all the heavens with their societies resemble one man they therefore call heaven the GRAND AND DIVINE MAN 1 -Divine because it is the Divine of the Lord that makes heaven (see above 7-12).
Footnotes:
1. [Swedenborg's footnote] Heaven in its entirety appears in form as a man, and hence heaven itself is called the GRAND MAN (Arcana Coelestia 2996, 2998, 3624-3649, 3636-3643, 3649, 3741-3745, 4625).