Eyes are the windows of the soul. It is the mirror of our physical and emotional health. The Bible states "The light of the body is your eye; when your eye is clear, your whole body is also full of light; but when it is bad, and your body is full of darkness" (Luke 11:34). Eyes are the major access routes by which light enters the body. It was in 1970 that science was able to prove this neurological connection that light entering the eyes was not just for the purpose of vision but was also sent to one of the most important part of the brain, the hypothalamus. Thus science established that light entering the eyes serves both visual and non visual functions. This discovery proved scientifically what ancient civilizations apparently already knew about light.
The hypothalamus which receives light energy by way of our eyes co-ordinates and regulates most of our life sustaining functions and also initiates and directs our reactions and adaptations to stress. Its major functions include control of the nervous system, energy balance, fluid balance, heat regulation, activity and sleep, circulation and breathing, growth and maturation, reproduction and emotional balance.
Information received by the Hypothalamus is also used to control the secretions of the pituitary gland, there by significantly affecting the bodys other major regulatory system, the endocrine system. The endocrine system regulates the physical and chemical process involved in the overall maintenance of life as well as the varying rates of chemical reactions within each of our cells. Although the pituitary plays a key role in the functioning of the endocrine system, it cannot on its own decide the appropriate hormones All. these high level decisions are taken by the hypothalamus. It controls most of the bodys light related information and sends it to the pineal a tiny pea sized organ found in the base of the brain. Sometimes known as the third eye, the pineal gland produces certain types of chemicals called `tryptamines`. One type of the tryptamines, melatonin, keeps our body clock aware of night and day and the changing seasons which then uses this information to cue other organs about light conditions in the environment.