Espionage and psychic espionage-cons

Philip K. Dick is really amazing.
40 years back, he deploys his imagination and depicts a society entirely credible, slave of consumerism, some companies to keep a competitive edge, going up spy on their opponents with telepaths, and others, will use psychics against attack, psychic protection companies in all.
At this interesting cocktail, which reminds us of the Pre- Cogs "Minority Report", adds a mystical dose that leads us in the anteroom of the afterlife and blurs our bearings with reality, reminding us of the puzzles in " Inception ".
All this distilled slowly, but with a sure, without falling into the traditional SF cliché.
A novel, which will not leave you unscathed ...