The 3-dimensional form of the display presents the story of life as a unbroken whole rather than a linear/logical progression of separate facts.
The seven pillars can be thought of as variously representing:
seven eras of evolutionary time (external time)
seven days of biblical creation (linear time)
seven days of the week (cyclical time)
seven chakras of human development (internal time)
The pillars themselves are painted to resemble stone, and gradually blend from black with white flecks for pillar I, to pink sandstone for pillar VII. The black represents inorganic star-studded Space, with the progression leading smoothly to the organic flesh-colored human hand at pillar VII symbolizing human stewardship of the Ecosystem. This can be thought of as an allusion to the biblical description of Mankind's role as "gardeners".
Each of the pillars are molded with a rising spiral pattern. This stands for the spiral DNA molecule which is common to all life on Earth. The DNA Spiral transforms and supports the environment making it suitable for life.
The display itself it progresses from right-to-left, in contrary motion to the traditional Western linguistic structures that enforce
a left-to-right view of time
an egoic subject-verb-object understanding of the world
and a world of pieces rather than wholes.
It is interesting to note that "health" and "whole" come from the same root word which means "unbroken unity".