In the early days, on a large continent existed Four Great Powers. They receive the protection of the sun god, taking the image of the sun as a family symbol. Energy comes from a central part of the human being and that central region is the eyes of the 'Phelan'.
'Phelan' is the limited bloodline of the Phoniex clan (only members of the lineage can open these eyes.) This can be seen as the pride of these family members. Phelan's eyes may appear from birth or after experiencing early psychological shock.
Phelan is going to transmit the owner's eyes to amber. Phelan also shows affection and hatred, the larger these emotions are, the darker the pigment in the eye and the more dangerous it becomes.
The 'Phelan' eye allows the owner to feel the world around them. Basically, it enhances cognitive power through mental clarity and sharpness. The use of the 'Phelan' eye does not mean that the possessor will become psychic or form magic as some people think, but rather the ability to control the mind and emotions more. The 'Phelan' eye opening gives the Phoniex family members a deeper sense of intuition toward the world around them.
The downside of these eyes, however, is that if you use too much, its benefits will eventually lose light.