Affinity are various types of energies residing in a person. An example of an affinity is the element Fire, it can be sorted to different forms, like Sky Flames, Storm Flames, etc but they are still considered to be under the element fire, thus people which has the affinity of fire can possibly control these other forms. In the past, people thought that "Flames" or the dying will flames are the source of one's power, however, there are other forms of energies that one could utilize based on his/her own nature. Some other affinities include, Water, Electricity, Earth, Wind, etc. these are not flames, these are different elements. These energies residing in one's body could be used and channeled with the help of special types materials, commonly rings, however, the kind of instrument used is not limited to rings.