It was the narrator's child's birthday on May 21st 1990, which brought great joy to the parents. Over the years, the child exhibited many traits like being inquisitive, gentle, naughty, a thrill-seeking dancer, competitor, someone who found euphoria in celebrating, a performer, swimmer, and someone daring and ritualistic. In September 2013, the child left to pursue new opportunities, taking on a new passion, leaving the narrator proud of the person their child had become. The document appears to be wishing a happy birthday to someone named ESHNU.