"The Three Stigmata of Palmer Eldritch" (1965) utilizes an array of science fiction concepts and features several layers of reality and unreality. It is also one of Dick's first works to explore religious themes. The novel takes place in the 21st century, when, under UN authority, mankind has colonized the Solar System's every habitable planet and moon. Life is physically daunting and psychologically monotonous for most colonists, so the UN must draft people to go to the colonies. Most entertain themselves using "Perky Pat" dolls and accessories manufactured by Earth-based "P.P. Layouts". The company also secretly creates "Can-D", an illegal but widely available hallucinogenic drug allowing the user to "translate" into Perky Pat (if the drug user is a woman) or Pat's boyfriend, Walt (if the drug user is a man). This recreational use of Can-D allows colonists to experience a few minutes of an idealized life on Earth by participating in a collective hallucination.