>>98322
I think OP's question is way too deep to be answered easily.
There are endless volumes and volumes of literature written on these subjects, not to mention it being the driving force behind human civilization and the endless ages of oral tradition mankind has never put to writing…
I will answer this question regarding this statement by OP:
>"I've seen much discussion about people trying to invoke "their personal Holy Guardian Angel" - is this not an invitation for possession by an alien entity?"
According to Roman Catholic and Eastern Orthodox teachings, there is nothing wrong with "praying to angels" or praying to saints for that matter, since these beings are thought of to be alive in Heaven.
There is scripture in the Bible to demonstrate that when saints die, there is the possibility (dogmatically) that they are with God in Heaven and even accepting prayers.
I imagine unless you are praying to an evil angel, good angels, doing the will of God will not cause "demonic possession".
There is such thing as "angelic possession", that is not of a negative nature, and I think the Catholic and Orthodox churches have recorded examples of this.
There are plenty of Protestant churches, like the Lutheran church which probably have their own testimonies and doctrines and such.
Technically, I think based on the Bible you could put forth the argument that it is wrong to pray to anybody except for God. So that means no praying to angels and no "calling on Angels".
However, also using the Bible, you can also make the argument that it is perfectly alright to pray to angels and 'call on angels'.
A big part of Catholic spirituality, especially Roman Catholic, is prayer to angels….such as the common Roman Catholic tradition of praying to "St. Michael" the arch-angel.
You may be interested in the various stories regarding angels throughout the Bible, OP…..such as the book of Tobit, the stories of David, Maccabees 2, etc….
Jesus tells us that the angles do not have a specific sex and more or less act as our common understanding of "angels" would expect them to act.
I think the tradition that satan was "an angel" comes from scripture in the New Testament.
I am not sure if most Jews believe that Satan was "an angel" or a "fallen angel", or not.
There are certainly various evil Heavenly powers, perhaps angels, discussed throughout the Bible such as….
>'1It happened, when men began to multiply on the surface of the ground, and daughters were born to them,
>2that God's sons saw that men's daughters were beautiful, and they took for themselves wives of all that they chose.
>3Yahweh said, "My Spirit will not strive with man forever, because he also is flesh; yet will his days be one hundred twenty years."
>4The Nephilim were in the earth in those days, and also after that, when God's sons came in to men's daughters. They bore children to them. Those were the mighty men who were of old, men of renown.'
>(Genesis, Ch. 6)
So, whether or not the angels will "possess" us…that is not really within our power to determine, but rather if we are susceptible to this (such as an unbeliever, theoretically, may be susceptible to such possession) then it is can really only be answered by the intentions of God or the intentions of the angles involved.
Many things done in Christianity are done in the "faith and love" of God….assuming that there will not be negative consequences for our actions because our hearts are right with God and we are protected by the blood of Jesus Christ.