If you're reading this for this first time, check the topic on "resonance" first.
When a body is moving energy through it, that moving energy needs to drain out of the body. This is vitally important. This is the same concept as a sink with running water. The water must constantly drain, or it gets back up. That's exactly what happens with your body when we don't properly drain the energy AS it runs through.
A few misconceptions. We do not get power from the ground. The earth has no power. It's receptive. All power in the earth comes from the sun. See the "Trees grow from the air, not the ground video" in this forum. Even power that's in the earth, came/comes from the sun.
When you jump a car battery, all the power comes from the positive lead. The ground lead can be attached anywhere on the car that will allow the charge to drain. Often the frame of the car is even better than the negative contact on the battery.
The best way to decouple a body, is to provide a structure at the bottom of the body that best allows the energy to drain the most efficiently.
Flat feet: Have you ever had neighbors above you that had speakers directly on the floor - and it felt like the music - especially the low end - was just booming all over the place. What they'd basically done is to turn their entire floor - and the walls - and to some degree the entire building into a big speaker. Feet placed flatly on the ground - or floor - act in the same way as your neighbors speakers on the floor. And those vibrations and built up resonances not only go back into the speaker body (your body) but they also "couple" with the floor and walls. Making all that "one body." A big mess.
You've also heard of a "heat sink" a similar process. It drains the heat away by quickly draining the heat (energy) to a larger surface area where it can dissipate. And that's why they call a kitchen sink a "sink." Sink does not mean to "lower your body structure vertically." It means to discharge the energy in your body through your legs - to your feet and toes - and out in the the ground.
The energy in your body, in order to drain and dissipate fast enough so that you don't turn into a big overcharged battery - is by "decoupling" your body with the ground/floor. The way to do that is by forming a smaller coupled surface at the lowest part of the structure- ideally in an upside down cone shape - that allows the energy to spiral downward - out of the body - and into the ground/floor.
You have something that's shaped just like upside-down cones on your feet. The toes.
--- more coming ---