What metaphors are used in Freedom by Orlando Patterson?

Quote regarding metaphor....

"Seneca's facile shifting here between the inner, the spiritual and the outer worlds illustrates a peculiar feature of Roman thought, one which sets off most strikingly from that of the Greek elite. Among the Greeks, aw we have seen, the inner world was heldfirmly apart from the outer. When one was used metaphorically to express the other, it was always absolutely clear that the statement should be taken analogically. In the Roman mind, this distinction is blurred."