An important virtue of The Comforter is Bulgakov's treatment of the filioque question. In fact, his discussion of this question may be the most important modern contribution to filioque studies from the Orthodox perspective. Examining the writings of the chief theoreticians on both sides of the dispute, Bulgakov finds that each side is wrong in its own way. He concludes that the filioque question is not an insuperable obstacle to the reunification of the churches. Finally available in English through the work of Boris Jakim, today's foremost translator of Russian theology and philosophy into English, The Comforter is a major publishing event.