>>27389167“The Japanese have long had a special regard for the navel. During the early Jōmon period in northern Japan, three small balls indicating the breasts and navel were pasted onto flat clay objects to represent the female body. The navel was exaggerated in size, informed by the belief that the navel symbolized the center where life began. Early Japanese poems feature many references to the female navel. The Japanese believe the belly is the source of person's warmth and that the perfect navel is an innie.”