There is darkness, and quiet, and the deepest of all possible slumbers. No dreams paint color onto the mind of their host, and no nightmares haunt their steps. There is no sense of time, or joy, or pain. There is nothing at all.
Then, there is not.
It is a slow process, like the first gentle drops of rain on a once-still pond. Like something large and entrenched being pulled from sticky mud. Flickers of almost-conscious thought that slowly coalesce into something more. Thoughts follow, slow and clumsy at first, but compounding on each other and growing more and more complex as the mind that owns them is forcefully dragged to the waking world. The process is not painful or unkind, but it could still be described as a little grating, all the same. Oblivion is not comforting, but it could be described as comfortable.
Then there is a mind, alone in a dark abyss. There is nothing to keep it company but the nothing, and the unsettling feeling that something is very wrong.
Words appear. It's not clear what format they come from. They're not spoken, or written, they just... are. Like they were dreamed from the mind that perceives them, but for how strange and mechanical and foreign they are.
>>> Awakening process complete. Please stand by for diagnostic.