All things have animism and are connected with human nature.
There is a white deer to the south of Feng Kingdom, which understands human nature, understands people's speech, takes human form, and guards the Fountain of Youth.
If you have a fox, you will be given a drink from the fountain of youth by a white deer. You can understand human nature, understand people's speech, and can also change your form.
Concept: All things have animism