I can relate with a very bad dream I had when I was maybe 7 or 8, it involved not a maze but fractal patterns of eggs and gears (although at the time I didn't know what fractal was, so I perceived it as "growing and growing to no end"). This happened once in my life, and it was 40 years ago, but I still remember how terrified I was, and I also remember how I have been scared for literally years after this episode to have this bad dream again.