The Sibylline texts were very important to the aristocracy of Rome. They leaned on these texts for all sorts of different advice. The people who read the texts were initiated and lived in the temple of Jupiter during their tenure, which is for life. These texts helped the Romans decide what to do in time of uncertainty in the empire. One particular instance was that weird hybrid animals and hermaphrodites were being born so they consulted the oracles. The oracles responded by telling them to give a sacrifice to Juno Queen to Zeus (Warrior, 7.18). Another instance is when there was a plague to oracles to Rome to bring a Greek god and they installed a temple to him. The writings say that the “pestilence subsided with amazing speed” so apparently this worked (Warrior 8.10).
Magic seemed to play a role in the majority of everyday peoples lives because of the many writings and inscriptions with magical attributes. It seemed all types of various incantations, potions, and spells were used by everyday people trying to change their lives. Sometimes being so specific as to curse specific body parts and even finical success on another person (Warrior, 12.12). Cato also describes magic to heal a dislocation that is fairly simple and could be done by anyone theoretically (Warrior, 12.6). The only explanation I have to the widespread interest in magical religion is that they had to have believed that these things really did affect their day to day lives. An interesting magic instance that happened was described by Pliny the Elder who describes someone magically transporting his whole farm into the courthouse (Warrior, 12.4). This is interesting because it seems to have no greater significance other than this act of magic happened.
The Cult of Mithras was an exclusively male only cult that possibly has its roots in the ancient near east. The cult was a sanctuary for all those initiated where they could move from place to place and be invited in because they were apart of the secret cult. The only primary text we have is from a Christian writer and it has to do with the initiation rituals. Being blindfolded in a cave and giving yourself over to Mithras is about all we get from the texts (Warrior, 9.13-16). It is interesting that they describe themselves as being “male brides to Venus” so they are describing the relationship as one close to marriage (Warrior, 9.15). Members also have a hierarchy and can rank up understanding maybe more and more about the cosmos as it seems their titles were that of luminaries.