I have given you my answers and you want some set in concrete thing and that is just flat NOT the nature of the real Christianity.
What is the nature of real Christianity, then? The good news of the Lord was taught by the Apostles who set about teaching it. The life of our Lord was then transcribed into His Holy Writ by the disciples of the Apostles (except in one case: the Gospel of St. John). What was the purpose of writing the Gospels, St. Luke tells us as he set out “to write an orderly account for you, most excellent Theophilus, that you may know the truth concerning the things of which you have been informed” (Luke 1:3-4). We may, then, consider the Gospels as being the compendium of all the doctrines of our Lord.
However, the Scriputres, in and of themselves, are not sufficient for forming doctrine as they can be interpreted a number of ways. Apostolic Tradition is (in a sense) the Apostles’ teaching/interpretation of the Gospel of our Lord. Men are fallible, however, and some things were ascribed to the Apostles that couldn’t possiblly have been taught by them (like indulgences).
We accept the confesison of the Apostles’ who were witnesses to Christ’s resurrection and glory. Christianity is set in stone, it is built on the foundation of our Lord.
The Assumption is not from the teaching of the Apostles. If it was, one would assume that such a miraculous event would be in the writings of the early Christians, but it isn’t. Where did the Assumption come from? It’s seed was planted with by a spurious gospel, it was watered by the
speculation of Epiphanius, and it began to grow once it was set as a feast in the Church.
I’ve found something to be true in Catholicism and put in words by other people: one generation’s speculative theology is the next generation’s dogma. Take, for example, the speculation back aroudn the 18th century that Mother of God was the mediatrix of all graces. Now it is considered a defined article of faith and in the future it will most likely be proclaimed dogma. The Immaculate Conception was also speculation back in Medieval Times, but in the 19th century it was dogma. See the pattern?
I can certainly accept the Assumption as a possibility and pious legend, but not as a part of the Apostolic faith.
We say in the Creed “credo in unam sanctam catholicam et apostolicam ecclesiam.” Examine your beliefs, are they what the Apostles or the Fathers taught?