Dia de los Muertos celebrations in San Antonio are full of tradition. On this night near the Instituto Cultural de Mexico, a drum and dance procession from the arts group Urban 15 began performing. After a few minutes they made their way inside the building, snaking around the altars into a gallery room. The room quickly became a swirl of sound and motion. The performance in this small space was so intense that it became a visceral physical experience. It was quite extraordinary.