So are you on the same earth as us, just a different "realm"? Quoting: Anonymous Coward 625424
Where on your earth do you live?
I am in Canada visiting my girlfriend.
Right now I am in the same physically-oriented place as you. This kind of simplifies it, as your own family and friends probably do not exist in the same "plane" (for lack of a usefuller word) as you.
However, I am from a place most would consider quite far. The distance is psychological.
For example, if you had a "time machine" and changed to the year 1000 you would be completely disoriented because the cognitive and physical framework is completely different.
It would be much easier for you to change to 2000, for example.
There are what you would call visitors from other perspectives in your world, as well. Again the cognitive framework is completely different. So you may see them as something they're not (like a spaceship, orb, or other form).
My world is quite similar so it isn't that difficult to change perspectives.
It is no different than you walking to another room. Although a better analogy in this example would be you *suddenly* appearing in Morocco.
For you there must be a gradual shift in perspective as opposed to a sudden one. Going back to our above example, you would probably need to change to 2005, 1999, 1980, etc., *before* your perspective shifts to year 1000. Otherwise you would see an other kind of world than that in your history books. (You would experience a world heavily influenced by your original time. So it would be more like a really strange year 2009 rather than ~year 1000.)