Iwill be home in time for Christmas.It’s always a little hard to leave Mexico, and leaving right before the holidays is perhaps the hardest. The giant Christmas tree just went up in front of the church last night. Thousands of handmade tin stars hang over the streets, embedded with colored glass beads and lit from within. The poinsettias (or “nochebuenas”) decorate the windowsills. There is a concert every night of the week. It is hard to leave, in the middle of all this celebration, to return to our own Christmas up north, where the weather is so very different.But I ...