Grounding with a Earth box?


OK so help be understand something.   I understand the value of grounding equipment, but what is the value of having a woodbox with salt, earth, minerals etc  do for grounding?  How is supposed to work or be better?


brubin
So per the website https://www.entreq.com/products/ground-boxes-17667704

it supposes to lower the noise floor since the home electrical system is full of interference.  
I was thinking if this is true - then why not just add a new ground rod and bring it into the house (if possible) ?   A ground rod and wire would cost less than $50 vs a box of dirt and minerals.    Any thoughts? 
well it can be expensive snake oil - https://www.thecableco.com/accessories/grounding-devices/olympus-tellus.html

$9,260 USD
Come on, see it from the positive side.

It is.......(Guaranteed lowest advertised price)
Where was this on The silliest tweak thread? After this, Hallographs start making sense.
The box is from the same company that makes vibb eaters -  cant make this up ...or can I?

thecableco.com/vibbeaters.html