HILLTOWN TWP., Pa. - Lights can lift our mood with their brightness, glow and warmth. Add in a few bows and balls and it s called Christmas. There are 17 trees at the Pearl S. Buck House, one around every corner and sometimes three to a room. It s all to further the mission of the woman who used to live there. It was a way to get people here to the Pearl S. Buck House so that they could learn about the legacy of Pearl S. Buck in addition to seeing the beautiful trees in her home, said Marie Toner, the house s director.