When people ask you, "Where have you seen the gods? How do you know for certain that gods exist, since you worship them so devotedly?" I answer this way. First, they are visible to the eye in some way. Second, I have never seen my own soul, yet I respect and honor it. So with the gods — through daily experience of their power and care for me and others, I know certainly that they exist. That is why I worship them.
To them that ask thee, Where hast thou seen the Gods, or how knowest thou certainly that there be Gods, that thou art so devout in their worship? I answer first of all, that even to the very eye, they are in some manner visible and apparent. Secondly, neither have I ever seen mine own soul, and yet I respect and honour it. So then for the Gods, by the daily experience that I have of their power and providence towards myself and others, I know certainly that they are, and therefore worship them.