This dream seemed peaceful and unsettling at the same time, until it was just unsettling.
When I was a child, I had a really strange nightmare where I was in a vast, outdoor, dreamcore-like liminal space with grass and not much else except for a building and a strange person. However, this was long before I learned about liminal spaces and dreamcore. I don't remember much about the building, but it was small, like the size of a convenience store. The dream seemed peaceful on the surface, but it was uncanny, it felt off, and it eventually got very emotionally and physically uncomfortable. I met this person who had very pale skin and a creepy and unchanging face with a smile and wide eyes and didn't say a word. Eventually, gravity was behaving abnormally, and I got this weird sensation of violent vibrating and my body becoming stiff, which I hated every second of.