How did Gerard Reve combine fact and fiction in Nader tot U?

In Nader tot U (1966), Gerard Reve employed a technique he termed "epistolary autobiography," which functions as an amalgam of letters and stories, blending fact and fiction.1

By utilizing this method, Reve created an extravagant and virtuoso narrative style that he associated with the movement of Romantic Decadence. Through this framework, he explored deeply personal themes, specifically his homosexuality and his conversion to Roman Catholicism, effectively blurring the lines between his own life experiences and his literary inventions.21