When I was young, around 6-8, I had a recurring dream. My recollection and the dream itself varied a little, but the general content was the same and I'll give you the fullest version I have.

My family was going on a camping trip or something and we pass by this giant pit with sand walls. Somehow I end up falling into the pit and I can't get out because of the sandy walls. Sometimes my family is crossing a ravine on a log to the side of the pit(which is between 50 and 90 feet deep). Then a mountain lion which was either there in the beginning or came in later starts going after me, but I can't escape. I yell to my family but they either can't hear me or don't save me in time. Just as the mountain lion jumps at me with its jaws open I wake up.

I used to have many other dreams about big cats attacking and wonder if it means anything.