Dawn of Discovery: Chapter 2 Intro - Leap of Faith

There are, in fact, despite some confusion, two kinds of darkness.

One is simple. The common association is the absence of light. Simple shadows, everywhere. Darkness as the deepest and most complete form of color. This term can be used in other ways, for example: to describe the soul of a wicked person. Or to represent a period of unconsciousness. Most scholars and professors of language will agree that darkness is a playful word, and in many ways poetic. But there is another kind of darkness, less objective.

Nothingness is the closest comparison. An absences of any visual or kinetic stimulants, as well as the absence of knowing what those things are, and what it is like to experience them. There are no emotions, matter, or memory. There is simply the endless probability of absolute inexperiencable emptiness. To step foot into this kind place (despite not being any place at all, in fact a total lack of borders and movement are part of the package), is forever. There is no coming back, since there is no time, it will never end.

There are only a few ways to "experience" this lack of experiences.

One is to be born. The moment a spirit and body become one, there is darkness.

One is to die. When your spirit leaves your body, there is darkness.

The last is to move your spirit from one body to another. To force it to travel into darkness.

Traveling between planes of existence is true darkness. Your body does not come with you. Some don't realize that part of dimensional travel. You see, you already exist in the plane you are traveling to. To have two identical souls on one plane of existence would shatter the foundation of that world. So souls travel, and your extra planar body is there waiting for you. No one is sure what happens to your original planar body while you leave, but it is "gone." Perhaps in a darkness of its own.