I have a feeling that the other two people who have posted replies, who sound like they know their Nietzsche, may "poo poo" this idea (I say this from experience because I'm doubling majoring in philosophy and history
) but look up the Spark Notes on "Thus Spoke Zarathustra", or go to Stanford Encyclopedia of Philosophy.edu and see what they have to say about this book. I love Nietzsche, and believe he is one the most brilliant and misunderstood philosophers of the 19th and 20th centuries.
One thing I find interesting about "Thus Spoke Zarathustra" is that in this book is the famous Nietzsche quote in which he states "God is Dead", in which he is referring to the old man in the sky Christian god. When this author, book, and statement are put into their historical context, this, I think, is when the possible meaning of work becomes interesting, because during his life is when the rebirth of the occult in Germany, Europe, and the United States was going on (look at Freud, Jung, Alaster Crowley
, and Mary Shelly's work all of them lived during this same time period in which more and more people were becoming very interested in eastern religions, mysticism, and paganism). This new open-mindedness to ideas that been lost in Europe because of Christianity, it seems, has become part of the down fall of "the church" in the last 130ish years. That being said, I have always thought Nietzsche was referring to the down fall of the Christian church that was going on right before his eyes, and he was writing philosophy about it.
Also, do some digging into the Zoroastrianism, it's a really interesting religion. In my ancient history class I learned that there is a lot of "Syncretism" (/หsษชลkrษtษชzษm/ is the combining of different (often contradictory) beliefs, often while melding practices of various schools of thought. Syncretism may involve the merger and analogising of several originally discrete traditions, especially in the theology and mythology of religion, thus asserting an underlying unity and allowing for an inclusive approach to other faiths. -from Wikipedia) between it and Christianity. I have also heard some interesting stuff about what Ahura Mazda says in the in reference to the world and why it is the way it is (essentially the creating of duality and why he felt he needed to bring that experience to humanity and himself). Zoroastrianism is a very interesting religion.
When I saw the title of your post I HAD to read it, and while I was reading it I gave goosebumps, and keep getting them as I write this, because there is one saying I whole heartily live by, and that is
pay attention to the coincidences!!! I have found that life seems to work a lot more fluidly, and in my best interests when I pay attention to to them because they really are not coincidences, they are universe telling us something! You seem to have fallen down a philosophical/historical rabbit hole that I believe has a profound message for you. Don't be discouraged by the complexity of Nietzsche's work, especially if you do a some research about the book and Zoroastrianism too. I hope this helps.
"So it was that Dreamer put a tree at the center of the universe and from that tree were born time, space, individuality, conflict, sex, and death. Of course it is no coincidence that these are the ingredients of a good yarn and the first one the tree spun is still one of the best: boy meets girl, boy loses girl, boy gets girl back. Since then, every time a seedling sprouts, dozens of new stories sprout with it, so Dreamer hasn't been bored for a moment." -from the book "Plant Spirit Medicine"