Pyramid is a supernatural power. It has has own shape and dimension. There is a logic, science behind this.
Generally any brings positive energy where the place you keep.
The term pyra = shakthi and Mid means center. So the pyramid will absorb energy and store in the center.
The energy stored in the center will flow all the places. The benefits are;
What ever the material or things kept inside the pyramid will be the same as how it was produced.
There are different sizes in the pyramid.
It can be used for meditation, food storage, healing, etc.