Thanksgiving leftovers may be long gone by now, but the holiday season is far from over. "A Christmas Celtic Sojourn" will soon return for its 16th season. For the past 15 years, the live edition of the WGBH radio show A Celtic Sojourn has celebrated the holiday through storytelling, music and dance. This year, the show is focusing on a theme that's as relevant to the story of Christmas as it is around the world today: the global refugee crisis. Jim Braude was joined by the show’s curator and host, Brian O'Donovan.