A pair of siblings in Torrance, California, turned a personal tragedy into a Christmastime blessing for local seniors. Karis Choi, 16, and her 15-year-old brother, Kyler, learned in June that their great-grandmother had died in a South Korean senior-care center. “We were devastated,” Karis told The Epoch Times. “My heart broke thinking of how isolated she must have felt self-quarantining alone for so long.” Kyler added, “Suddenly, a flow of memories of spending time with her brought me to tears. I cried so much. I felt so empty, and that emptiness lingered for a long time.” The teens’ grief, combined with their passion for community service, inspired them to find a way to honor their great-grandmother and remind local seniors they’re not alone. Bright, Joyful Cards “We arrived at the idea of greeting cards because I’ve been hand-drawing greeting cards for the people I love in my life for as …