The eyes symbolize duality, the left eye is solar- sensitive to the negative, the right eye is lunar

The eyes symbolize duality, the left eye is solar- sensitive to the negative, the right eye is lunar- sensitive to the positive and affirmative, they cross the information to produce the correct mental image of space. 
They symbolize the experimentation of consciousness in a universe of contrasts and to find the truth by comparison of the opposite sides. 
The eyes react to the active light of the sun, producing in our mind the true light, the luminous vital energy, an invisible light that makes possible the intelligence and the understanding of reality.