It shows the way energy looks when it takes form. Mathematics defines relationships between one object and another. Since all objects are ultimately energy, it can be said that all energy as it moves through our three dimensional universe. If we move out of the universe of form, governed by three dimensions and controlled by space and time, we move out of body into mind. The fourth dimension, then, must be the dimension of pure thought.
Energy is always energy, regardless of dimension.
Whatever energy we perceive in our dimension of form must exist in the dimension of thought. The highest dimension of energy must be God. As the energy drops into denser dimensions, each dimension changes the way it expresses and is perceived, but the energy is always energy. The energy of pure thought is magnetic in nature when it moves through three dimensions. Not ferrous magnetic, another type of energy akin to gravity.