Light is defined as “the natural agent (force of nature) that stimulates our sight and makes things visible.” When our eyes encounter light, they send messages to our brain in order for us to see. Light is a form of electromagnetic radiation that can be detected by the human eye, called visible light. In simple terms, electromagnetic radiation consists of waves that contain both an electric field and a magnetic field. These waves carry energy and travel at the speed of light. Although electromagnetic radiation occurs over an extremely wide range of wavelengths, from gamma rays with wavelengths less than about 1 × 10−11 meters to radio waves measured in meters, our eyes can only see wavelengths that correspond to visible light, consisting of the colours of the rainbow.
Light allows us to see the surrounding world by distinguishing details, individual colors, movement, and brightness. It has a very big impact on a human in terms of physiology (how our body functions) and psyche (thoughts and feelings). Light also has extremely important functions in relation to a lot of biological processes that occur in our body, everything that makes our body work, for example, breathing and digestion.
What is light made of?
Light is made of particles called photons, bundles of the electromagnetic field that carry a specific amount of energy. With sophisticated equipment, you can count photons or even perform measurements on a single one. Light helps us to see things. It helps plants to make food and grow. It is used to power satellites and space stations. It is used in many electronic appliances.
What is light in our life?
Light is the source of all life on our planet. The importance of light could be comprehended as plants synthesize (create) nutrients from light using chlorophyll; plants also filter the air we breathe. Animals and humans depend on plants for survival. Therefore, everything depends on light in some way.
When you think of light within the human body, our mind has light in it; when you think, you emit energy or light. The human body is so much more than its apparent physical aspect. The human mind is vaster than the mind itself can know. The purpose of life is far more profound than chasing achievements in society, career, and family.
The human body converts energy stored in food into work—thermal energy or chemical energy that is stored in the fatty tissues of our body. The energy included in the basal metabolic rate (the number of calories you burn as your body performs all of its basic life-sustaining functions) is divided among various systems in the body with the largest portion going to the liver and spleen and brain.
The elements in our bodies like sodium, potassium, calcium, and magnesium have a specific electrical charge. Almost all our cells can use these charged elements called ions to generate electricity. Humans obtain energy from three classes of fuel molecules: carbohydrates, lipids (fats), and proteins. The chemical energy of these molecules is transformed into other energy forms such as thermal (heat), kinetic (movement) and other chemical forms.
Electricity is everywhere, even in the human body. Our cells are specialized to conduct electrical currents. Electricity is required for the nervous system to send signals throughout the body and to the brain, making it possible for us to move, think, and feel. Our body even contains radioactive particles which come from our environment, our food; even our own body processes create radioactive particles.
How much electricity is in the human body?
Scientists agree that the human body, at rest, can produce around 100 watts of power on average. This is enough electricity to power up a light bulb. Some humans have the ability to output over 2,000 watts of power, for example, when sprinting.
Seeing how humans can only exist because of sunlight, it is not so far-fetched to know that our bodies also emit light, in the form of biophotons, light particles that are not visible to the naked eye. Biologists have measured biophotons produced by rat brains at the rate of one photon per neuron per minute. Although that does not sound like many, there are 1011 neurons in a human brain, which suggests it could produce more than a billion biophotons per second.
Since then, the evidence has grown. So-called biophotons seem to be produced naturally in the brain and elsewhere in the body by the decay of certain electronically excited molecular species. Our brains produce biophotons with wavelengths of between 200 and 1,300 nanometers; in other words, from near-infrared to ultraviolet. We are truly fearfully and wonderfully made.
“God endowed man with so great vital force that he has withstood the accumulation of disease brought upon the race in consequence of perverted habits and has continued for six thousand years. This fact in itself is enough evidence to us of the strength and electrical energy that God gave to man at his creation. If Adam, at his creation, had not been endowed with twenty times as much vital force as men now have, the race, with their present habits of living in violation of natural law, would have become extinct.” –Conflict and Courage, p. 21
“The love which Christ diffuses through the whole being is a vitalizing power. Every vital part of the brain, the heart, and the nerves it touches with healing. By it, the highest energies of the being are roused to activity. It frees the soul from the guilt and sorrow, the anxiety and care, that crush the life forces. With it come serenity and composure. It implants in the soul, joy that nothing earthly can destroy, joy in the Holy Spirit, health-giving, life-giving joy.” –Counsels for the Church, p. 216
“Ye are the light of the world. A city that is set on a hill cannot be hid. Neither do men light a candle, and put it under a bushel, but on a candlestick; and it giveth light unto all that are in the house. Let your light so shine before men, that they may see your good works, and glorify your Father which is in heaven.” Matthew 5:14–16
“The entrance of Thy words giveth light; it giveth understanding unto the simple.” Psalm 119:130
“It [the Word of God] is a light shining in a dark place. As we search its pages, light enters the heart, illuminating the mind. By this light, we see what we ought to be.
“We see in the Word, warnings, and promises, with God behind them all. We are invited to search this Word for aid when brought into difficult places. If we do not consult the Guidebook at every step, inquiring, Is this the way of the Lord? our words and acts will be tainted by selfishness. We shall forget God and walk in paths that He has not chosen for us.” –My Life Today, p. 27
“Ye are all the children of light, and the children of the day: we are not of the night, nor of darkness.” 1 Thessalonians 5:5
“The Bible is God’s great director. It is a lamp to our feet, a light to our path. It flashes its light ahead, so that we may see the path by which we are traveling; and its rays are thrown back on history, showing the most perfect harmony in that which to the mind in darkness appears like error and discord. In that which seems to the worldling an inexplicable mystery, God’s children see light and beauty.” –Christ Triumphant, p. 328
“Strait is the gate, and narrow is the way, which leadeth unto life, and few there be that find it.” Matthew 7:14. Amen
Daniel Kimeu