Reiki Energy, known as Chi, or Universal Energy, is the fundamental source of all creation. That involves both the primary electric charge (positive and negative); broader environmental energies and elements (fire, water, wood, earth, and metal); physical structures, such as our own bodies; and also the intelligence that required to create and assemble all physical structures.
As I create this Post, reiki fuels me, reiki is me.
Reiki Energy also is the underlying aspect to all of our thoughts and emotions. Wilhelm Reich researched the relationship between universal energy and our thoughts and emotions in detail over many years.
Even weather patterns are an example of the activity of universal energy (Reiki Energy), as yin and yang energies interact and transform between the two polarities.