Large platform mounds adjoined the plazas, topped by sumptuous religious temples and the residences of chiefs and other elites. Religious ceremonies focused on the worship of the sun as the source of agricultural fertility. The people considered chiefs to be related to the sun. When a chief died, his wives and servants were killed so that they could accompany him in the afterlife. Largely in connection with their religious and funeral rituals, Mississippian artists produced highly sophisticated work in clay, stone, shell, copper, wood, and other materials.
When we use sumptuous to describe things, they are?
