(BGM from "Hallelujah")
"Human Completion Project" can be considered as the main theme of Neon Genesis Evangelion. Nerv is the organization to execute the project, under the inspection of Seele, the "Human Completion Project Committee". It is being executed very secretely. The content of "Human Completion Project" is still unknown, but we know that it is something which will change the world completely.
Keel Lorenz, head of Seele
More in-depth info about "Human Completion Project" can be found below. Be warned that the following info is EXTREMELY SPOILING and is suitable ONLY for those who have watched TV episodes 1-24(at least). If you do not follow I'm sure you will regret what you have done.
Warning! You are now on the way down to Terminal Dogma under Nerv headquarters! Return before it is too late!
You are now near Terminal Dogma! Return now! This is your last warning!
It's already too late...you have come to Terminal Dogma. May God bless you.
The process to recover lost things is "completion". We all have empty parts in our hearts, and the process to recover what we lost and reunite hearts back to the original state is "Human Completion". That's what "Human Completion Project" basically is.
Humankind has already come to the bottleneck of evolution. To save humankind from extinction, "Human Completion Project" is launched. It is a process to initiate the evolution of mankind to a higher state of existence, the way to exist without the mortal bodies, and to exist as a perfect single being. To achieve this, with the "Fruit of Wisdom" possessed by humankind, it is necessary to artificially create the "Fruit of Life" from the "Tree of Life", something owned by God and forbidden to be touched by humankind. Finally, "Third Impact" must be activated to destroy the material world and to complete the "completion".
Although both Seele and Gendou wants Third Impact to happen, they believe that by controlling the Third Impact by being the one to first return to Lilith without losing one's physical body, it is thought that one becomes a "god" of some kind. That's why Keel tries to destroy Nerv after the last Angel was eliminated - he wants to be the "god".
Neon Genesis Evangelion and related images are copyrighted by GAINAX/ Project EVA, TVX, NAS.