hehehe Is this true hehehe

once i had a dream about hitler so

Nope.

Sure, it's possible Ты will dream about someone Ты like, but that doesn't mean everyone Ты dream about is someone Ты like. I've dreamt of people I dislike tremendously... and also of people I only met once.. или just saw and never met, etc.

Technically, our minds cannot make faces, so every face in our dreams is of someone we've seen before (in the streets for instance). I don't know if thats true, but I doubt dreaming about someone means Ты like them. Maybe in a certain context it might. Поиск for "dream dictionary".