Is there any rule for mandala art?

Good day, I am curious to know if there are any established rules or guidelines that govern the creation of mandala art? As I understand, mandalas have been an integral part of various cultures and traditions, often associated with spirituality and meditation. So, I am wondering if there are any set of principles or conventions that artists adhere to when creating these intricate designs. Would the rules vary depending on the culture or tradition? Or are there some universal principles that apply across the board? Thank you for your time and insights.