What is the ending of Limbo?

What is the ending of Limbo? According to many old tales, the soul can only get out of Limbo until the body is properly buried. The boy continues through Limbo until his sister finds and buries his body. So in the ending scene, she is not digging but she is covering his grave. She senses him and he sees her one last time before going to heaven.

According to many old tales, the soul can only get out of Limbo until the body is properly buried. The boy continues through Limbo until his sister finds and buries his body. So in the ending scene, she is not digging but she is covering his grave. She senses him and he sees her one last time before going to heaven.