The foot connection is to posture.
Just as the foundation under your home has a major impact on its look, function and durability, so is the case with your body. The foot foundation affects posture which in turn controls how the force of gravity impacts the body. Any imbalance in posture causes musculoskeletal tension and imbalance.
A sagging foundation under your house is not always noticed immediately. The beams and plywood in the structure maintain the shape of the house. But in time, the force of gravity and the lack of foundation support will cause the beams and structures to start sagging, and ultimately give in. A failing human foundation leads to poor posture and the effect is often not detected until it has become a painful chronic health problem.
The majority of doctors and therapists treating chronic pain rate good posture important to musculoskeletal health and well being.