The national treasure, the heavenly treasure box, is a fictional novel. The ending is not clear, so it is impossible to give a definite answer. But generally speaking, the ending of a novel was an ending that the author showed through the further development of the story or the turning point of the character's fate. There might be different explanations for the problem of the Heavenly Eye in the novel. The Heavenly Eye was a mysterious ability that allowed people to see deeper things or reveal the hidden truth. In some scenarios, the clairvoyant may be used to protect or reveal secrets, but in other scenarios, it may also be a threat or obstacle. Therefore, at the end of the novel, there might be a further discussion and explanation of the nature or function of the Heavenly Eye.