What exactly is Lilith in EVA, what is its connection with EVA, and why is it placed at the headquarters?

In the Bible, Adam is the true ancestor of mankind and the first man created by God. Lilith is the legendary basilisk, Adam's first wife, and like Adam, the true ancestor of mankind. But later Adam's rib gave birth to Eve, and Lilith tempted them to eat the apple of wisdom in the Garden of Eden.

According to the plot of EVA, Adam is actually the first apostle, the humanoid machine discovered at the Antarctic base during the first collision. Now there is a saying that it is called "nano machine" (similar to human beings). The ingredients are exactly the same), and EVA was developed from Adam

Lilith, Adam's first wife in Jewish teachings, was expelled from the Garden of Eden due to her triangle relationship with Eve, and later married Satan gave birth to Li Lin, and Li Lin became human. Lilith in "EVA" is the white giant who was nailed underground to the NERV headquarters, the final dogmatic cross. Lilith was secretly sent here by Seele because she was seriously injured in the "Second Impact" in Antarctica. Later, due to Lilith's self-repair, it grew too fast and could not be controlled, so Nerv's Commander Ikari and Deputy Commander Fuyuki took the United Nations' ocean-going fleet to the Antarctic, and used the US military "Nimitz" aircraft carrier to carry the found "Longinus" "Gun" returned to the headquarters and used the Zero piloted by Zero to pierce the Longinus Gun into Lilith's body to curb her growth. Due to the penetration of the "gun", Lilith's legs recovered slowly and even grew a dozen pairs of human-like legs. In the episode against the Bird Angel, Unit Zero was ordered to pull out the Longinus Gun, and Lilith's legs quickly grew, but the tiny human legs still did not grow back. In the future, Lilith appeared Pregnancy phenomenon. In the second part of the EVA movie version, after Zero and Lilith merged, the "human legs" formed by Lilith disappeared. Regarding the appearance of Lilith in EVA, many people think that Lilith has 7 eyes, which is actually wrong. The dark purple disc on Lilith's face is actually the mask that Seele nailed to Lilith in order to deceive the apostles and the UN. The seven eyes and the triangle behind the mask are the logo of the SEELE organization (this pattern may come from " "Dead Sea Document"), so that others would think that Adam is being held under NERV, but the real Adam has been reduced to an embryo and is being kept in the hands of Commander Ikari.