The saying that the old man of the West was a place where the jade rabbit could watch for free was probably a wrong description or a joke. Journey to the West was a classic Chinese novel. There was no mention of the character Laozi or the Jade Rabbit. The Jade Rabbit may be a fictional character or place in Journey to the West, but it has no direct relationship with Laozi. If you have any more accurate information or questions, please let me know.