I’ve heard other dream, NDE, and OBE accounts describing elevators. If you do some searching you may find some validation that you had more than a dream experience. It may be an actual place in another realm. Makes me wonder.I have dreamed of my maternal grandmother, too. She was inviting me to get into this really elegant elevator but unfortunately, I woke up before I could see where it would go. I have had dreams about my parents, too, who are both now deceased.