The cutting edge of sleep technology
The research and development process is often a lengthy and arduous one. In the Cosmic Era, it is often just a matter of time and luck to see who breaks the next barrier in arcanotech.
Governments and mega-corporations have found a way to cheat the the system, the Dream Tanks are their most valuable assets.
One of the most common and well recognized SimSense parlors of the Cosmic Era
They say you give up a few things, chasing a dream. In those mists that's the literal truth, for every dream of yours that comes true, a piece of yourself, mind, body, or soul, gets taken by the mist. Worst part is, you won't even know what the cost of your dreams are until you go to leave, and by then you might not even have a mind left to change...
A fragment of the mists of creation, drawn to those desperate to make their dreams come true. Suitable for any magical fantasy setting.
Once one of their number, the eternal outcast wishes to take from the Elves what they hold dearest - their dreams, their past, their future.
Ages past the Woodking fell into a deep and terrible slumber, and from the fever of his dreams and nightmares the wooden dungeon of Limberlost grew.
An old, misanthropic and paranoid man feels his time is coming. There are sons to leave his fortune to, but they are not worth it, not a dime do they deserve! And he doesn't really trust anyone else. And so he has made a decision: as a part of his last will, his henchmen are instructed to burn and destroy all his holdings, buildings as harvest. The lands shall be auctioned off, the proceeds used to pay the servants. Nothing shall stay behind. Nothing.
Depending on the status of the grumpy old man, this weird occurrence may be only a family drama, or it may end up bringing an entire region into chaos. Or the son(s) have found what should happen, and want to prevent it before their sick father dies.