My polytheism centers on my efforts to maintain the Pax deorum (the Peace of the Gods), which is the center of the Religio Romana (the Roman religion). This is the harmony between humans and the Gods. Affirming the Pax deorum is the basis of pietas (Roman piety). What does this mean? Piety entails ritual purity, doing the rituals correctly, making daily offerings, and saying daily prayers. It is rooted in deep respect for the Gods.
Another part of piety is ius divinum (sacred law). This recognizes what is rightfully the Gods’. A part of keeping the right relations is understanding what the rights of the Gods are. Do They have the right to be as They are? Do I insist that apolitical Janus, the Doorkeeper of the Gods, be involved in the affairs of humans? Do I tell Ceres of the Aventine Triad to ignore the rights of the poor and downtrodden? To ignore Their Rights is an act of impiety and promotes ira deorum (the Anger of the Gods).
Another part of pietas is do ut des (I give that you may give), which is the reciprocity between the person and their Gods. This is a cycle of gratitude for each other. I give to the Gods expecting that They will return in kind. I give in gratitude for what They give to me, and so the cycle of gratitude continues between us. Since the tradition of Religio Romana is having a client-patron relationship with the Gods, I do for Them what They cannot do for Themselves, and They do the same for me.
These three principles – Pax deorum, ius divinus, and do ut des govern my Roman polytheism. It may seem restrictive and businesslike to some but it suits me. I embrace the Gods as They are, and They me. Order and structure in my polytheism gives me the freedom to love Them.