What should you do if a dream seems completely realistic no matter what you do to test it?

[Laurelindo]

Last night I dreamed that I had travelled home from university to visit my mother at home - by plane, which was in itself a dreamsign, since I always take the train. Anyway, I suddenly realized that I had major problems remembering anything at all about my home journey, and that was really weird since I always can remember at least a couple things no matter how absent-minded I am. I said to my mother "mom, I can usually always remember at least something about my trip back home, but this time I can't remember a single thing - isn't that weird?". She almost seemed a little upset by this question, and then told me that this often happens to her as well. I wasn't convinced by this though, since I felt very clearly that something was weird about the whole situation. So I tried levitating up into the air by sort of "willing "myself to lift from the ground - that didn't work. Next I tried to jump into the air several times in an attempt to fly, but it really felt exactly like jumping in waking life. Then I think I tried plugging my nose and breathing through it, but even that RC failed. After running around like this for a while I finally had to admit "okay, this is waking life then" - and then I woke up! How are you supposed to tackle dreams like this, when they persistently simulate waking life so flawlessly? I certainly don't consider this a "failure" by any means, this is definitely very close to a real LD, it's just a bit confusing how a dream can conceal its true nature so well.