The “bloodline” of Angelic Human Krystos (you) evolution comes directly from the DNA template of the Elohei-Elohim, the portion of the collective group of Elohim who never abandoned this species, nor had anything to do with its eradication.
After seeing just how amazing this new feature of unlimited power had been for the Elohim, a group of geneticists, Grail-Line Oraphim Angelics from Sirius-B decided to perfect it even further.
Their superior creation was then used as the template used forthe Human experiment here on earth. Regarding the term “Grail” in the name of the beings behind this stage of your evolution,grail is another term for the word Krystos mentioned in the Angelic Human Krystos species.
Another term for this same feature is “arc”, as the Anu-Elohim went on to add to their Archangel status, in reference to the silver-strand to eternal-life developed in the Elohim.
The bloodline of the Elohim template has always been the “holy grail” spoken of in your religious texts, as it has always been the one most-coveted feature of all beings.
The “chalice” of the holy grail always meant a real human body, and not some cup made of special metal from the heavens that imparted eternal life. Your captors do not share this feature with you, which is another large topic for another time.
The genesis of the race you now call “human” here is in every way considered royalty in the interstellar communities who have been EAGERLY anticipating your entry now for 560 million years.