I just thought of this a few days ago, but for every item you see, ask yourself where it came from, who it belongs to, and anything else you can say about it's origin.

For every place you are, ask you owns it, when (about) was it built, anything else you can think of.

For every person you see, 'ask' what their name is, who they're related to, how they got here (walked, flew, in a dream, it would be hard to even guess).

You get the idea!

In a dream, I don't think you could guess very well, and if you can't say at least 2 things about 3 items/things/people, then you are dreaming - it's a little much, but u get the idea

Happy dreaming