Constantin Sigov, Ukrainian Orthodox philosopher, heads the European Center at the Kyiv-Mohyla University and directs the influential publishing house Dukh i Litera. As a lay intellectual within the UOC-MP, Sigov took an active part in the process of reunification of the three Ukrainian Orthodox churches that culminated in the Tomos of Autocephaly of the new Orthodox Church of Ukraine (OCU). Has been actively engaged for years in Christian Ecumenism and Interreligious Dialogue. He can offer a profound insider look into the crisis of Ukrainian Orthodoxy and the ways forward to overcome the crisis.