I totally agree with your point regarding sleep and how it feels so real but when you wake up, you realize that it was not and in fact everything seemed so fake now from your new perspective. So no one can say that this reality is real because its the exact same feeling of 'real' we get from dreams that we feel in this reality. Who knows when we die we might wake up in a different dimension and feel so stupid that we thought "life" was real. I think whats more important to understand is our consciousness because in my opinion reality is just a representation/construct of our mind. Have a good day.
@zonnovate Thank you for your thoughtful input! I really hope our consciousness is immortal and can live without the body!
Yh I think that is big possibility, much more likely then this reality being the one true reality. But if we can reincarnate it is very likely that we will not remember anything and will not know about any previous lives, as this will defeat the point of existence we exists through different bodies forms so we can improve our souls. Well that my interpretation of that, and that's why I am a vegan because during one life time I may reincarnate into a cow and I would never want to be treated how they are in the animal agriculture industry.