There’s so much more to light than meets the eye.
Light is the intelligence of life. That’s the conclusion Jacob Liberman, O.D., Ph.D., has come to after decades of exploring light, vision, and consciousness.
Light is much more than the particles and waves you learned
about in physics class, he insists.
“It is a purveyor of consciousness,” he writes in his new
book, Luminous Life: How the Science of Light Unlocks the
Art of Living (to be published by New World Library in
February). “Light is not just ‘out there,’ something we need
to find in order to see, but light seeks us out and guides us …
There is something inherently alive in it.” Not only do our
bodies absorb light, he continues, but “we literally have light
emanating from within us.”
This is why quantum physicists say light is the
fundamental energy from which everything emerges, he
says. It’s also the reason the Bible speaks of God as light.
Bright vs. Light
To understand light and its impact, we must first
understand what light is and what it is not. When we
think about light, most of us are actually thinking about
brightness, explains Liberman, an optometrist who also
holds a doctoral degree in vision science. Light reflects off
objects and then interacts with the complex mechanism of
our eyes, which then sends the information to our brain,
Light is made up of photons, Liberman notes, subatomic
particles that are invisible to the naked eye. They have no
mass, no weight, and no electrical charge. They are basically
energy and information that directs just about every cell in
“Everyone knows that light guides every facet of a plant’s
existence,” Liberman says. “Yet most of us do not realize that
our lives, and the lives of all living beings, are reliant on,
guided by, and the result of light.” Light, he succinctly notes,
is the invisible that makes everything visible.
Just like the plant, all our physiological functions are
light-dependent, linked to the 24-hour light and dark cycle.
Light guides not only the rhythm of when we sleep and
when we awaken, but it also guides other body functions.
By significantly impacting the production of the energy-rich
molecule adenosine triphosphate (ATP), light triggers the
body to fuel its own growth, regeneration, and function.
All our life-sustaining centers, including our nervous,
endocrine, and immune system, as well as our emotional
response to life, are tied to light.
“Routine exposure to sunlight reduces resting heart rate,
respiratory rate, blood pressure, and blood sugar,” Liberman
reports, “while increasing energy, strength, endurance, and
the ability of blood to absorb and carry oxygen.” Light
BY DEBORAH SHOUSE