Its base is square, mimicking the earth, its top is round and tall, resembling the sky. It can stand or lie fl…
Its base is square, mimicking the earth, its top is round and tall, resembling the sky. It can stand or lie flat, appearing high yet not precarious. With four corners steadily supporting, it is accessible from all sides without bias. The raised middle is called the "plump belly," and the edge is the "rim."