No life can exist without the presence of natural sunshine. Each spring we feel the joy and energy that longer sunfilled days bring. All of nature wakes up to the added benefit of more and more natural light. When daylight enters our eyes, it reaches the pineal gland (also known as the seat of the soul or the third eye) and activates our endocrine system which is connected to our immune and nervous systems. The pineal gland reduces the production of the light sensitive hormone, melatonin from 100% in the night to 10% during the day. The balance of melatonin has been proven to be a crucial element in many health related studies and has been linked to oestrogen production, and many cancer related diseases. Stimulating proper production of melatonin from the pineal glad is paramount to good health.

External light travels on a direct pathway from the retina to the part of the hypothalamus believed to be involved in running our biologic clock, the suprachiasmatic nuclei. The path continues to the tiny, cone-shaped pineal gland, which secretes the hormone melatonin.
Ott made a valid point when wrote in his last book, Light, Radiation and You: How to Stay Healthy , "Mankind adapted to the full range of the solar spectrum, and artificial distortions of that spectrum - malillumination, a condition analogous to malnutrition - may have biologic effects". In an interview published in 1991, he noted: "There are neurochemical channels from the retina to the pineal and pituitary glands, the master glands of the whole endocrine system that controls the production and release of hormones. This regulates your body chemistry and its growth, all organs of your body, including your brain, and how they function".

Only 25% of the light absorbed by the eye is used for the process of seeing. The biggest part reach through the “energetic part“ (75%) of the visual field the organism and control the entire metabolism and the hormonal balance.

The System of Life
The system of life - the DNA - is a biological laser which is able to store light up to several hours by means of the sunlight. The cell metabolism and the communication with the neighbour cells is controlled by the ultra-weak emission of photones.