I am dissatisfied with my two previous posts on religion as worship, so I have decided to approach the question from a different direction.
All religions ask us to do many things, the reasons for some of which we may not understand -- even Neopaganisms! In traditional Buddhism, for example, a lot of emphasis is placed on faith that the Buddha has the true Dharma (teaching) and that it is preserved by the Sangha (monastic community), so when Buddhists are in danger of becoming discouraged by their lack of progress in meditation, they reinforce our faith through an act of will.
In Christianity and other theistic faiths, things are little different, or at least they seem so to me. In these religions, the tenets of faith are given by a divine person, and breaking the rules becomes, at least in part, an act of disobedience. A serious, faithful Christian obeys the commands of God at least partly because he or she believes obedience to be essential to the religion. After all, with full understanding there would be no faith (at least for the Christian), but where we don't understand we must have another reason to believe, and that reason is often obedience to God.
Obedience. Let that sink in. Every day, day in and day out, Christians obey commands that they may not fully understand, that they might have reasons for believing are not to be obeyed, yet they obey them anyway because that is what God commands. This goes directly against the instincts of most of us in a modern, democratic, individualist society. For us, freedom is the rule except when it impinges on the freedom of others. So what do you do? Do you (a) change your religious beliefs to suit modernity ("God doesn't really hate gays!"); (b) abandon your religious beliefs, perhaps adopting others more compatible with your individualist values; (c) change your secular values to conform to your religious values; or (d) keep both conflicting value systems, obedience in religion and individualism in daily life?
I believe most faithful, conservative Christians choose a mix of (c) and (d). It's certainly possible to live this kind of double life; it isn't rationally out of bounds; but I think humans find that kind of double standard difficult to live with. If God is real, and we are used to obeying him, then obedience takes on a positive cast in our minds. Humans think by association more than strict logic, and if you are accustomed to thinking of your relationship with God as one where you are the servant (see Paul in the New Testament) and God is the commander, then that will naturally carry over into the rest of your life.
Obedience. Obedience to God is good, so obedience becomes, by natural association, the natural and good way for society to order itself. Need I spell out the implications this has for the political order? How about the family order?
This isn't to say that all Christians are fascists or that Christian families are authoritarian. There are many reasons why this isn't the case: for one, there are other messages about kindness and mercy in Christianity (and Judaism, and Islam) that offset this tendency. For another, people do not always follow this slippery slope perfectly. There is friction along the way. But I do believe that we see this tendency among Christians and other theistic believers, and for the reason I outline above.
If Christianity were true, we would just have to live with this fact of obedience. But it isn't, and if we choose to follow a Pagan path, then we must decide how we are going to interact with the divine. Will it be one of obedience? Of service, perhaps? Of communion? Perhaps a mixture of these and more? I don't know, but I know that I no longer think much of worship, at least insofar as it leads to the kind of authoritarianism I have outlined in these posts.