christian's moon

christian regularly talks about how the moon is "his moon". he thinks it belongs to him. when it's cloudy outside, he asks where his moon is and tells me that he misses him. tonight when he saw the moon he said, "mom, what happened to my moon? part of it broke off." i tried to explain, but it didn't satisfy him. he wants his moon back. if anyone finds the part that "broke off", please let us know ASAP!!!