Hello Corthos,
I don't get the whole concept of this religion. How did it started? and is the maker of this religion is a prophet? I understand that it have three priniciples and you worship one God. Who is the one God of Zoroastrianism? Do you have book to read? Do you practice any specific observance?
You have a creature like an angel and a creature like a devil , what the end of devil? or bad people?
Is there an afterdeath?
I told you that i have few questions but i didn't know that i have a lot. (^^).
Those are a lot of questions with very long answers. XD I will try to keep my answers as short as I can! Before I can answer your questions, however, there are some things you need to know first.
Though similar to Abrahamic religions, Zoroastrianism actually shares roots with Hinduism. Keep in mind, this is an Eastern religion at it's heart. =)
There are several denominations of this religion. There are Gathic (sometimes called reformist) Zoroastrians, Parsis, and Traditionalists (sometimes called Orthodox).
Also keep in mind that my answers are my own, and others (especially Parsis) might give you a different answer. With that in mind, let's answer your questions! =)
There is a lot of mystery surrounding this... With someone who lived 3000-3500 years ago, there are plenty of myths and legends surrounding Asho Zarathushtra and his message; there are some things we know for sure due to the Gathas, though.
Firstly, he lived during a time where people worshiped many gods (Daevas and Ahuras). After years of thoughtful inquisition and contemplation of life, he came to a realization that there is one source of divinity - one god. The title he thought most fitting for this god was Ahura (masculine - meaning Lord) Mazda (feminine - meaning Wisdom). In essence, this is the first known instance of a Monotheistic god, as far as we know. According to Zarathushtra, this god embodies many attributes such as Asha (the true and right order of everything - righteousness), Spenta Mainyu (progressive/creative thought), Vohu Manah (good purpose/Intent), etc etc. Notice these concepts aren't out of reach for people as well... They are good things to strive for. =)
Needless to say, the priests and corrupt leaders of the time weren't too happy with his message, so he faced of a lot of persecution from them... He eventually was granted audience with King Vishtaspa, however, and the king was so impressed with Asho Zarathushtra's message that he converted to The Good Religion (the original name of Zoroastrianism). From there it spread. =)
and is the maker of this religion is a prophet?
Yes - but depending on who you talk to, the definition varies.
To many Gathic Zoroastrian like me, he was a philosopher, a teacher, and a guide. It's much more of an eastern concept, similar to a Guru, or the Buddha. =)
To many Traditionalists and Parsis, he was a miracle worker similar to prophets of the Torah/Bible/Quran.
I understand that it have three priniciples and you worship one God. Who is the one God of Zoroastrianism?
Ahura Mazda. =) He/she demonstrates both masculine and feminine qualities, but Ahura Mazda is formless. There are some similarities that Ahura Mazda has with Yahweh/God/Allah, but there are many differences as well... One difference being that Ahura Mazda doesn't require service to him/her; what matters ultimately are our thoughts, words, and deeds. A thoughtful and compassionate atheist is of more value to Ahura Mazda than a thoughtless and selfish Zoroastrian. He/she wouldn't judge that atheist for his lack of faith, or even his contempt (if he was an antitheist).
There's a lot more to Ahura Mazda than that, but that's a lot of info for one post, so I will leave it at that. XD If you want more specific info, though, please feel free to ask!
Do you have book to read?
Yup! Quite a few, in fact. We have the Zend Avesta (which contains the Yasna, Yasts, Vendidad, etc etc) and the Pahlavi texts. Inside the Yasna section of the Avesta are the Gathas - the original songs written by Asho Zarathushtra himself. The Yasna section was written some 600-900 years later, and though I do find value in it, it isn't nearly as important or accurate as the Gathas. Some of the other texts are controversial (such as the Vendidad), so none except the most conservative Traditionalists/Parsis take those too seriously.
There are many other texts that were lost as well due to the invasions of Alexander the great and Muslims during the early days of Islam.
Do you practice any specific observance?
Yes we do! We have holidays such as Nowruz. Many of us (Especially Traditionalists) pray 5 times a day, but instead of facing Mecca, we face an open flame (a sacred symbol that represents many things including light, warmth, and the good workings and energy of Ahura Mazda). We have ancient mantras that have been recited for many thousands of years as well... Both in English and the old Avestan language (but I do prefer the old Avestan mantras). There are many rituals practiced by the Traditionalists and the Parsis, but Gathic Zoroastrians don't tend to practice those very much at all.
You have a creature like an angel and a creature like a devil , what the end of devil?
Actually, those are misconceptions. XD Traditionalists and Parsis have creatures like angels (the Amesha Spentas) and devils (the Daevas). Instead of Shaitan, they have Ahriman.
For Gathic Zoroastrians, we have Spenta Mainyu (Progressive/creative thought) and Angrah Mainyu (regressive/restrictive thought). There is no devil character for me... Just me battling my inner demons. =) I know it's not as exciting, but this is one reason why Good Thoughts, Good Words, and Good Deeds are so important. Instead of fighting a supernatural battle of light and darkness, it's facing situations and choosing wisely with every choice I am presented with in life.
or bad people?
Is there an afterdeath?
We believe there's an afterlife, but again, there are differences.
Traditionalists/Parsis believe in a physical paradise/hell, while Gathic Zoroastrians believe in a state of mind.
I believe we will be our own judges. What I mean by that is that if we are in an unhealthy state of mind in life, we will continue to dwell in our unhealthiness in death.... If we are happy and healthy in life, we will exist in this state upon death. All Zoroastrians believe that eventually "hell" will end, though. All souls will eventually be healed and purified, and they will join their brothers and sisters in the end.
I hope that helps! I'd like to remind you again that I'm just speaking for myself; I'm not a Zoroastrian expert, just a Zoroastrian newb.