Philip K Dick craved status as one of literature's great novelists, he wrote numerous 'mainstream' novels which, in his early years, publishers wouldn't even touch. It was when he was writing SF that his extaordinary mind was set free.
He was fascinated by psychology and theology and has many strange beliefs and theories, and coupled with many inexplicable visions that plagued him throughout his life, his work was unlike anything else at the time.
Ostensibly, Dick's works are obviously SF, dealing with androids, aliens, robots, natural disasters, moons, planets etc. but they go so much deeper. The SF element takes a back seat to the story and serves merely as a backdrop for Dick's imagination to run free and a tool for him to manipulate his characters and beliefs (and some cases for his characters to manipulate himself!).
The Galactic Pot Healer is no different. (I got there eventually!)
On the surface it's the story of Joe Fernwright in a drab dystopian Earth scraping an existence from the fast-declining business brought in by his talent for fixing ceramics. He receives stange messages from a creature calling itelf 'Glimmung' summoning him to help raise the underwater ruins of a cathedral on an alien world. However, if you read between the lines and look a little deeper.....well, that would be telling wouldn't it!
It's slow, yet oddly captivating story and one of my favourites of Dick's works. It's not a very good place to start if you're new to him; you'd best go for 'Ubik' or 'Do Androids Dream....'. If you're familiar with his works then go for it; this as a fantastic story, it's short but sweet too at 180 ish pages. I loved it, it's up there with his big five in my opinion; 'Main in the High Castle', 'Ubik', 'A Scanner Darkly', 'Three Stigmata of Palmer Eldritch' & 'Do Androids Dream of Electric Sheep?'.
The last three words are absolutely punishing.