It wasn't easy being a rebel in the Soviet Union, back in the 1970s when Sergy Ribko was a rock drummer who cherished whatever scraps of music and media made it through the Iron Curtain.
Most of all, the self-proclaimed hippie, who would later become a Russian Orthodox priest, loved the Beatles.
The band taught us "to think about the meaning of life, good and evil, even about God and eternity; taught us to understand and love freedom in all its manifestations," wrote Ribko in an open letter addressed to the "Dear and Highly Esteemed Sir Paul McCartney" that has been translated from Russian and circulated on the Internet.
"The absence of freedom was extremely felt in that totalitarian country, in which we were doomed to be born and live. The 'iron curtain' separated us ... from our mates in the free world where they could create and live according to their desires. ... Moreover it tried to hide from us the Heavens and God."
What would inspire the rector of Moscow's Church of the Holy Spirit to write such a personal letter to a rock patriarch in the West?
Here's the blunt answer -- Pussy Riot.
McCartney released a letter backing the members of this infamous music group who were recently sentenced to two years in prison for "hooliganism motivated by religious hatred." Their crime was a "punk prayer" in which they pleaded, in highly profane terms, with the Virgin Mary to oust President Vladimir Putin.
"I hope you can stay strong," concluded McCartney, "and believe that I and many others like me who believe in free speech will do everything in our power to support you and the idea of artistic freedom."
For Father Ribko and many others, the key is not that Pussy Riot attacked Putin, but that the group's members recorded their YouTube video as they danced, prostrated and pretended to pray directly in front of the holy doors at the altar of the Cathedral of Christ the Savior. The video included images from another church invasion, as well.