Thedas
It is. Too many use chaos for their own purposes.
He bestowed 'Chuckles' upon me so his sense of humour is certainly intact.
I would not say that dwarves cannot be possessed, simply that it cannot happen in the Fade which is where such things usually happen. However a spirit or demon who had been drawn into the world could likely do so, if they were invited in by the dwarf in question. I am not certain if the spirit or demon would much care for it though. To possess a being with no connection to the Fade would likely be disconcerting for them.
I have learned a great deal about magic, for one. But I often sleep in battlefields and ancient ruins and see the actions, great and small, from the past. I slept at Ostagar and saw the fall of King Cailan in the battle against the darkspawn in the recent Blight. A golden king brought low. It was remarkable.