I went into a trance during lunch break at work one day. I partially visualised my mom and my aunt sitting at a table with me. I more just "sensed" that they were there, rather. But they started talking between themselves. I came out of it and felt like it had just happened for real.

And today I did that, but instead of random chatter, I saw myself sitting at my computer for a split second, then went back to my body. It was weird how real it felt!