Sometimes I wonder if that's not how I feel...

"Loneliness" is a monster that live in the dreams of those who are alone.
It alter their dreams to make them think they're the only person left in the world... Then, it pretend to be their friend.
And... Once the person is attached to the monster, the monster asks something like "Are you afraid of being all alone again ?" and opens his maw...
Most of the people are really afraid of being alone, and enters his maw... Feeding him.
Once inside of that monster, they can't wake up... And if they're digested in that dream, they'll spend the rest of their real life sleeping, without even being able to dream again...