I don't remember exactly, this is more than 25 years ago, but I think in the dream they were easier than they ever were when awake. In the dream I was some kind

I don't remember exactly, this is more than 25 years ago, but I think in the dream they were easier than they ever were when awake. In the dream I was some kind of calculus-ninja. I know this sounds ridiculus but personally I believe that I actually were in a state of mind were I mastered the topic I had studied.