There are three types of vision: foveal, macular, and peripheral. These types of vision correspond to different areas of the eye.
Foveal and macular vision mostly rely on photoreceptors in the eye called cones. Cones allow you to see color, to read, and to see fine details up close.
Peripheral vision uses photoreceptors called rods, which allow you to see quite well in the dark without artificial light. Peripheral vision also helps
Peripheral vision is also linked to another important ability that modern civilization appears to have deleted from natural experience: the ability to *not* have anxiety.
For people who live in modern urban or other settings with some light in the environment all the time (which is almost every person in the entire world now): The easiest, quickest way to learn how to use your peripheral vision and restore your ability to stay peripheral is to learn how to walk at night without artificial light.
Using peripheral vision is required to successfully see in the dark without artificial light. Nelson Zink and Stephen Parks created NightWalking because they wanted an activity that could only be done with peripheral vision.
The processes and training design of the NightWalking retreat have been intentionally created and tested to help you practice peripheral vision and learn how to stay in peripheral mode for longer periods of time.