According to Hyp Records:
The legacy of John Rydgren (deceased) is one of the most enigmatic in radio-jock if not also record history. A Lutheran evangelist, Rydgren started a hit program called "Silhouettes," in which he rapped over such appealing tunes as "Music to Watch Girls By," "Groovin'," "Rinky Dink," the Electric Prunes' "Kyrie Eleison,"...
[h]is thoughts were highly original, ranging from quirky perceptions of the mundane to deep acid-head philosophy...For a taste, here are illustrations of Rydgren's "Hippy 23rd Psalm":
"Silhouettes" were as weird as anything heard from a pulpit or transistor radio.
Pastor John pitched his rants to the Hippie Freaks (many of whom would become Jesus Freaks) entirely on the hippies' own terms. Mentioned frequently are drugs (LSD, mushrooms, pot), mini-skirts, and other signifiers of the era. References to God... are plentiful but philosophical and intriguing. Such evangelical pills were supposed to slip subtly through the sugar coating of everyone's favorite psychedelic '60s hits. It worked.