Each person is unique, due to differences in genetics, experiences and mind and body control. In fact, it is important to realize that there are crucial links between the body, environment and the mind which determine personality traits. Even gifted people may have discrepancies among those connections. They may have an over developed mind, but lack social skills (environmental awareness), or they may be gifted in sports (body control) and be poor at academics, etc. Gifted leadership skills are just as important as gifted musicians and artists. It is important to realize that eyesight is only one small part of vision; there are many other visual systems often not addressed during a routine eye screening. Each of the systems develops in a hierarchy, linking with other system development. For instance, motor skills and visual skills combine for good coordination, or visual and auditory skills combine used for reading.