My boys were quite young when an elderly relative passed away, but they'd been close to her and were very upset when she died. One night, I took them upstairs to look out at the stars. I told them that they were shining so brightly because grandma was now living up there. I said she could see them, and she was very happy in her new home. If they wanted her to see them smiling again, all they had to do was look up at the biggest and brightest star, and wave to her, and grandma'd twinkle back. Of course - that's what they saw, and they were fine after that. They were only about 3 and 4 at the time though!