This is not orthodox belief. It comes from my studies at YouTube theological seminary. Here are the high points:
Belief is social, not absolute. It is the only way to know those things which are mysterious, meaning they cannot be empirically proven. The Holy Office no longer condemns heresy or books - it helps book sales too much. Unless it is about sex, heresy is ignored.
Most of the best stuff cannot be empirically tested with control groups, etc. Too many factors. The Eucharist, other experiences of God - especially Near Death ones, Astrology and other personality systems like Jungian personality typing. Sometimes you have to believe people and trust what they commonly believe - as well as the fact that such believes can evolve.
Whether God is entirely transcendent, in Orthodoxy as Father, Son (the Word) and Spirit, or Mother Earth, Sophia and Shekinah - or in science the Universe, the knowledge of it (the only way we know and experience it) - also known as the standard model of particle physics or the space-time, and the actual experience of life, love and time. Just as electro-magnetism are two joined concepts, so is space-time. In metaphysics, the Father can be seen as space, or being, with the Spirit as Time. Without Time, there is no space beyond one point. You cannot have one point going to another without an idea of time, or the addition of a third dimension forming a plane. Indeed, all the higher dimensions are really lower dimensions that give us that one universal point - which we can only know using time.
So Einstein believed in the God of Spinoza - which is pantheistic - the God in Nature of Bill W. of AA, which is essentially what Jesus taught (judge not, the Word, see God in others/be God to others).
It's all the same, only the politics get in the way.
They won't always. The Pope is old and the Cardinal Electors are liberal. A successful conclave will give us a liberal pope and an unsuccessful one a schism. Some may go toward the Ecumenical Patriarch - indeed, both sides should, but one hundred some years ago, the OP and the Great Synod declared that Anglican succession is valid. They need a seat at the table because in order for any kind of high church orthodoxy to survive, it needs to accept that the Spirit lives in the demand for change in sexual teaching on both ordination and conduct (divorce, gay marriage, female ordination, open Communion). Finally, the site of the Ecumenical Patriarchy should be the center of political power - which is Washington, not Moscow (especially since Putin destroyed the Russian military and civil society) or Rome (Europe is more apostate than the US) and Constantinople (where the Church is no longer in persecution and the Ottoman Empire is no longer a hegemon).
That is the easy stuff. The real fun stuff is where we got God and the story of the Man of Easter, which is part of this video and part of the next. See the next for that description.