Hughes
I had also hoped to write a very brief outline of a few of the innumerable Scriptural types which have guided me in the development of Tones and Colours; but my sight suddenly failed for reading and writing; and I only allude to the seven spirits of God (Rev. iii. I) as regards tones and colours, and to the twelve fruits of the Tree of Life (Rev. xxii. 2) as regards the twelve notes of keyed instruments. [Harmonies of Tones and Colours, Supplementary Remarks and Diagrams, page 53]

According to the Encyclopedia Britannica, the tree of knowledge, connecting heaven and the underworld, and the tree of life, connecting all forms of creation, are both forms of the world tree or cosmic tree. According to some scholars, the tree of life and the tree of the knowledge of good and evil, portrayed in various religions and philosophies, are the same tree. Tree of Life - Wikipedia

Plotinus
"That which resumes all under a unity is a Principle in which all things exist together and the single thing is All. From this Principle, which remains internally unmoved, particular things push forth as from a single root which never itself emerges. They are a branching into part, into multiplicity, each single outgrowth bearing its trace of the common source. Thus, phase by phase, there in finally the production into this world; some things close still to the root, others widely separate in the continuous progression until we have, in our metaphor, bough and crest, foliage and fruit.
At the one side all is one point of unbroken rest, on the other is the ceaseless process, leaf and fruit, all the things of process carrying ever within themselves the Reason-Principles of the Upper Sphere, and striving to become trees in their own minor order and producing, if at all, only what is in strict gradation from themselves.
As for the abandoned spaces in what corresponds to the branches these two draw upon the root, from which, despite all their variance, they also derive; and the branches again operate upon their own furthest extremities: operation is to be traced only from point to next point, but, in the fact, there has been both inflow and outgo of creative or modifying force at the very root which, itself again, has its priors.
The things that act upon each other are branchings from a far-off beginning and so stand distinct; but they derive initially from the one source: all interaction is like that of brothers, resemblant as drawing life from the same parents." [The Enneads by Plotinus]

See Also

Bible
Kabbala
Life
Ramsay - PLATE X - Growth-like Continuity of Chords and Keys
Tree of Knowledge
sentient
Sephiroth
vital principle of music
vital principle