The descent of the spirit into a human being is comparable to the arrival of spring, which allows a tree to manifest all the riches it bears within it.
Roots, a trunk, and branches are not sufficient: a tree is only truly a tree when – having been worked on by the universal spirit – it begins to produce leaves, flowers, and fruits. It is the same for human beings. We possess a stomach, lungs, and a brain, but is this sufficient to call ourselves fully developed beings? No, like the roots, trunk, and branches, of a tree, our organs are only a material support upon which the spirit must work in order to bear leaves, flowers, and fruits. Symbolically, the leaves represent the activity of the stomach, flowers that of the lungs, and fruits that of the brain.
Omraam Mikhael Aivanhov
Video- Love is a spring (video)