You now passively improve the density of all forms of energy you have access to, both internal and external. The higher the density, the more effective your energy is in the same quantity. By actively working to improve the density of your energies, you will eventually be able to increase the quality of the energy you are working on. Achieving an increase in quality is a momentous event, as a higher quality energy will be able to perform in an entirely different realm from the base form. Quality increases allow for more flexibility and creativity with the improved energy, loosening the bindings that you'd normally be subject to.