Is a dream reality possible?

[Oldandeasilyconfused]

There was once a man who fell asleep under a tree. He dreamed he was a butterfly.Then he woke.

Was he a man dreaming he was a butterfly,or a butterfly dreaming he was a man?

and this backward way of thinking accomplishes nothing but mental masturbation

A colourful way of saying 'solipism',the natural world view of the infant and the Ostrich.