His smile used to light up the room, and his laughter was contagious. He was happy and gregarious, always laughing, always welcoming. His eyes shone with a light that comes from within, the one that puts people at ease. Ultimately, he loved to make his guests feel at home when they dined at his restaurant, Sol Y Luna.  Guillermo Castro was the pillar of the family in many ways, ranging from getting together at his house to feeding them always and being their confidant. His death in 2011 created a void that would never be filled. “Guillermo was such an inspiring person,” Jorge Castro said about his brother. “He loved to sit down and have a conversation with the guests [at the restaurant]. We were so close, and losing him was devastating to my brothers and me. He kept the family together. We took vacations together and had family parties. …