Not conscious or in one's right mind. So asleep or enchanted.
"The course of true love never did run smooth." Act I, Scene I
it begin in theseus palace
"Lord, what fools these mortals be!" -- Puck, Act 3, Scene ii.
More information about the specific dream is needed to provide any meaningful interpretation; "someone" might be a lover, parent, celebrity or historical figure, and each would give a different...