The book is now available from Deseret Book.

In the book, graphics are used to aid in describing the properties of light and to illustrate connections between the physical and spiritual attributes of light. Some of these figures may be easier to understand when viewed in color in addition to the grayscale versions provided in the book. Please see below for color versions of each figure. Click on an image to see it in higher resolution (in a new window).

Figure 2.1

Light consists of electromagnetic radiation and comes in units of photons (small, individual pieces of light). A common flashlight emits trillions and trillions of photons every second. Photons are always moving (at about the speed of light) and are made up of a magnetic field and an electric field combined orthogonally. Photons never stop moving unless they are absorbed by something.

Figure 2.2

Electromagnetic spectrum for all three attributes of light: wavelength, frequency, and energy. Examples of sources of light at various wavelengths are given in the included pictures. Note: light is also referred to as waves.

Figure 3.1

(a) Picture of fire pokers. Heat causes one to glow an orange-red color in a visible display of blackbody radiation (image from: https://commons.wikimedia.org/w/index.php?curid=136199).
​(b) Image of a person taken by an infrared camera compared to the same frame with a typical camera.

Figure 3.2

Conceptual electrical circuits illustrating one possibility (by analogy) of how spiritual light radiation is powered. We all have a portion of the Light of Christ, which is a perfect light source that is broken down into two parts: (1) a luminescent coating (spiritualuminescence) that is always radiating a small amount of light, like the conscience, and (2) a light bulb that radiates light based on the energy supplied to it. The level of spiritual energy supplied is based on our obedience to, and worthiness of, the Holy Ghost (analogous to the battery in the electrical circuit).

Figure 4.1

Schematic representation of graphene, which is a single sheet of carbon atoms arranged (bound together) in a honeycomb structure. When many layers of graphene are stacked together, they form graphite. The microscope image in the middle shows that, when placed on an appropriate substrate, even a single layer of atoms (graphene) is made visible, though it is fainter than the thicker (graphite) layers.

Figure 8.1

How many black dots are there in the image? The answer is twelve, but can you see them all at once? (See image at https://theverge.com/2016/9/12/12885574 /optical-illusion-12-black-dots)