The Amorphous is a very unusual being... if you can even call it that. As the name implies, it is shapeless, its form appearing to constantly change. It is also void of color for the most part; however, the human brain cannot process this properly, and therefore fills in the space with darkness, much like the way the brain sees a black hole or space itself. Sometimes, when it truly wills itself to, an Amorphous can change into any shape it so desires, sometimes even able to change a few colors. It can be for a brief or long period of time, depending on how intricate the form. It takes energy in order for an Amorphus to shapeshift.
An Amorphous cannot be born. It cannot be created. It cannot be destroyed. Only moved. It simply was, is, and will be. Forever.
Throughout history, the Amorphous has had many names: angel, demon, ghost, spirit, and more recently, a "shade". An Amorphous can be either good or bad. Like humans, some have more morals than others. But in our dimension, "good" and "bad" are simple names we use to label things that help or harm us. In most alternate dimensions, no such ideas exist.
Amorphouses tend to be incredibly powerful as well. Not only can they cross dimensions, but they have the capability to create dimensions as well. This leads some to believe that in the beginning an Amorphous created our own dimension — our own universe. It is unclear what its intent was, whether this entity created us on purpose or not, whether he has a plan for us or even cares. It is also uncertain whether or not it could have been done by a single being or many.
Not to mention how wise they are. Because they have always been, because they have always traveled, they have infinite knowledge about the world, our universe... and other dimensions as well. Some people seek to gain some of their knowledge by summoning them and trying to get information out of them, but all end in failure.
There are also ways of summoning an Amorphous. Many of these ways you have probably heard of: Ouija boards, chanting something at a mirror in the dark, there are plenty of rituals. When an Amorphous is pulled into our dimension against its will, it can become quite aggressive and angry. Sometimes, in rare cases, they react calmly, curiously. When pulled through to our world, it takes a lot of energy out of them, so they tend to stick aroud a familiar place or object for a while until they have enough strength to move freely again. It's no rush, though, being able to travel through time and space.
I'm sure you've made a few connections, most likely you yourself may have had an experience with an Amorphous at one time or other. You're probably close to one right now.
We are nice little playthings for some of them to watch stumble about. And they do not fully understand dying — not being able to die themselves — so they enjoy watching us when we do. It interest them to see us cease to move.
It's certain humans they find the most entertaining are the ones who feel the most fear. It's also almost impossible for an Amorphous to feel fear — nothing threatens them. Although they are all-knowing, they can never understand first-hand what fear feels like or what death is like. This plagues them.
So many of them watch us, and wait to watch us die, hoping to learn something. A few grow very, very eager. They try to speed up the process.
Those moving shadows you see at night in the dark corners of your room may not be your mind playing tricks.
It could be — probably is — the writhing mass of an Amorphous.
Trying to frighten you.
And growing very, very impatient.