It is a matter of opinion all the way down. Everything reflects opinion. Everything runs on opinion. War is the final solution regarding whose opinion rules (And, since opinion never goes away, war never ends). All religion everywhere throughout time is founded on opinion. One person's faith is that person's opinion of what ought to be believed and done, and why. Religions have been at war with each other-- in one way or another-- for as long as there have been people. People are the bane of existence, and religion is the bane of people. If we could just have our opinion in the matter about every matter, without trying to force our opinion onto others... We all have an opinion about what constitutes a perfect lemon icebox pie, a consummate Bordeaux, a real human being... Philosophies and theologies also revolve around someone's opinion about real human beings, about how we ought to be. The test of our opinion regarding a real human being comes down to how well we apply/exhibit/exemplify that in our own life. How close to our ideal person does our life personify over time? How objective/conscious/aware are we in evaluating our own life? How truthfully do we live? How is integrity, sincerity, spontaneity expressed in our life in each situation as it arises? How often, for how long, do we become who having our way now requires us to be? Our opinions revolve around what is in it for us, and what we stand to gain or lose by how we see what we look at and how we want things to be. In that way, we are all "like the wind that blows where it will." A little consistency and constancy would go a long way toward balance and harmony.