quote from Amazon on review of this book.
"For anyone who has speculated on the meaning and purpose of dreaming, Griffin and Tyrrell's astounding insights light up the dark corners of the mind. Not since 1964 when Carl Jung's book Man and his Symbols was published has anyone set out to write so conclusively on dreaming for a wide audience.
Jung proposed a compensatory role for dreams to re-establish 'the total psychic equilibrium'. Griffin and Tyrrell leap ahead of this to the notion that dreaming functions to cleanse the undischarged emotional arousals of the day and they explain how this happens through metaphorical pattern-matching. From this one sets off on the journey to understanding the true causes (and routes to healing) of depression."
Mind you, read a few of his books and been to some of his lectures and whilst he talks some sense, some of his stuff I think is just place nonsense.