The Celestial Festival-What´s The Celestial Festival?

You might have believed all tales about magic are myths, work of fiction, but the truth is the stories are real. Before the year 1100 d.m.-the death of magic-magic was momentously celebrated.
During the Celestial Festival-what is 'The Celestial Festival?'
The festival was a day to pay tribute to the Creator and the Birth of Magic. It was held on the day a young fisherman was brought back to life with a kiss from his beloved.
As the mighty feast began, the extraordinary tales of ancient feuds and battles were retold through song: "Time was but a fallacy. The intricate nature of one's future is interlaced with another's past and present." The bard would sing hauntingly, crouching down to the roaring fire. "Throughout our existence, mankind

Their belief in ridding the world of its existence was to protect what was left of humanity from falling back into the same destructive pattern, which continuously left mankind clinging to the hope of peace. For during this time: Lines have been crossed. Chaos and infighting had ensued. The fate of magic was uncertain. The world had plunge itself into a bottomless abyss, and all that was certain was a troubling future awaited those unfortunate to survive the carnage.
Granted, there was beauty in my pain. But to understand my pain, you must get to the heart of the matter, and learn how legends became fables.
Not every memory I had of battled ended in grief or sorrow. Some days, were cheery and bright and began and ended in laughter.
You might be wondering at this point if I played a role in the demise of magic.
The short answer is . . . Yes.
I had no say on the events, which led to my lust for vengeance and the end of magic-and if I had the power to change my history, I would have. However, since I do not wield such an ability to rewrite a narrative, written before the idea of humanity was conceived. I must accept my role in the misery and turmoil I inflicted, and atone for my sins-who am I?
My name at this point is not relevant, but you will come to learn it, in due