阅读下面的诗，回答相关问题
                                                                                                               除夜^①作
                                                                                                           （唐）高适
                                                                                        旅馆寒灯独不眠，客心何事转凄然？
                                                                                        故乡今夜思千里，霜鬓明朝又一年。
【注释】①除夜：除夕之夜。