Final answer:
The rituals within the temples of Herculaneum and Pompeii involved worship and cult practices of deities such as Dionysus and Isis. These rituals included sacrifices and ceremonies conducted by priests and attended by worshippers.
Step-by-step explanation:
The ritual within the temples of Herculaneum and Pompeii was a part of the worship and cult practices of various deities, including Dionysus and Isis. These rituals often involved sacrifices and ceremonies that were conducted by priests and attended by worshippers. For example, at the Villa of the Mysteries in Pompeii, there is a fresco that depicts a ritual scene which may reenact the marriage between Dionysus and Ariadne. The Temple of Isis in Pompeii also had its own esoteric rituals related to the worship of Isis.