thanks, Lúthien, for activating my account: I wasn't any longer hoping that someone would do it, but the fact that it happened now is really interesting to me...

Having always been a truth-seeker I'm extremely happy that this site exists.
Gnosis is, in my opinion, one of the most straight (or less convoluted) ways to find pieces of the objective truth.
What I'm going to say may be very hard to consider, yet this is the only thing I'd ask you: could you please only consider that it may be possible?
The last thing I wish is that someone believes it, as this would prevent them from finding out whether it is the truth or not.
The first thing I wish (dream of, actually) is that even just one person thinks: "Well, it may be true, it may have happened"
What happened is that I met a woman, as a child, and this woman wasn't like any woman you could normally see on earth.
Her external and internal beauty went (and goes) far beyond the reach of human imagination.
Her name was (and is) Lada Haldeson, and she was (and still is) a hermit.
She approached me and talked to me in a language that later I would know as Sindarin.
She called it Mithren.
She taught me to speak in Mithren (it is partly different from the Sindarin attested in J.R.R. Tolkien's scripts) and when I reached a reasonable level of fluency she started to tell me things about something I didn't even know she were aware of: my curious memories.
I've been born with inexplicable memories in my head: I have remembered having had a wife, a family, friends, since I was six.
Of course these memories were about a previous life, but this life I didn't live in this world.
It was another one.
She already knew about my memories, she already knew everything and, in the beginning, this drove me almost crazy.
She explained to me that the land which I had always seen in my mind was called Balannor.
She told me I was one of the First Men (which she called "In-edhil" or "In-minen"), a member of the first generation of men.
This - according to her - had been born long before the generation of men I knew, long before the normal men who I could meet in everyday life.
She called normal men "In-aedain", "The Second Ones".
So, I learnt (countless memories could confirm that) that I was a temporarily reincarnated First Man (or "edhel").
I learnt that I had come to inhabit a human body, for an established period of time, in order to deliver a message to many people of this world.
Lada, whose real name is Nilwen Oerynien, told me that J.R.R. Tolkien did the same.
He couldn't reveal the truth directly, for obvious reasons, but he tried to do it through fiction.
I witnessed this truth: Lada wasn't alone.
She was, when we first met, but then she introduced me to three friends: Torion, Arphin and Ivrenwen.
They do not have names in any language of this world ("Lada" is a rough translation of "Nilwen").
They are all Eldar.
And, well, I know I may have just said something ridiculous but... if you had just seen them, it wouldn't be difficult to consider it to be something as real as any thing you know.
They were literally angels.
Besides, they were identical to the people who lived in my memories.
A friend of mine, whose name was Andrea, saw Lada on one occasion: she has been an obsession for this person ever since that moment.
I'll always remember my friend's words: "I saw an angel, a real angel, and something tells me that I'll never see anything even remotely similar again. But I will always want to. I'll never stop trying to meet her again".
There would be one more thing I witnessed before L. Haldeson vanished from my life, leaving me with what I'd learnt.
I'm not sure whether to tell it or not, as it looks even more "ridiculous" than everything I've said so far.
I saw an Empress Eagle.
It's a gigantic species of eagle which once - in the Pleistocene Age, according to what Lada told me - lived in this world.
But now Empress Eagles live only in Balannor and the Eldar can communicate with them: they are far more intelligent than any other kind of animal, even more than monkeys.
They often help Eldar move from one place to another (when it's a distant one).
And I saw one, in this life, in this world, with my own eyes.
I'm not proud of it, but that time I fainted.
I guess I was just terrified by its size (also by the eyes, they are the most impressive part).
Very well...
I did it.
It took courage, but I started to tell you about my experience.
A real experience, I assure you.
I have been living with it in silence for many, too many years.
It's beatiful, but it's also terrible.
People nowadays believe in things such as aliens, demons... and I know this, and I can't tell other people (theoretically).
Is it too naive of me to hope that this can be the right place where to talk about it?
And, of course, I'd be interested in knowing if any of you has had analogous experiences...
And by the way: Mildir is not just a nickname, it would be my true name. It means "He who studies", but also "He who pines for something".
In everyday life I study languages (English, German, Irish, but also Latin, Ancient Greek and Aramaic).