Sitting in a cubicle in a windowless office can be depressing. A person needs some sunlight! It helps your mood, it brightens your day, and it helps you forget that you're stuck wasting your days in an air conditioned box.
If you can't get that corner office, at least you can talk your office manager into installing some sky ceilings. Sky Factory, the company behind the fake skylights, has just released a new model that recreates the changes in color and intensity that comes along with the sunrise and sunset. It's the next best thing to actually seeing the outside world during the day! Thanks, technology!