OP, you dun goofed. You were supposed to watch The End of Evangelion before watching episodes 25 & 26. Also, don't listen to Sesto, End of Eva and Ep. 25/26 are the same ending but told in a different manner. At the end of Episode 26 when he's being Congratulated, you saw the stage begin to crack and shatter, that was his own mind finally coming to accept the harsh emotions of other people. He broke down the imaginary wall he built up, he finally overcame the Hedgehogs Dilemma that was plaguing him through out the series. The location is a coral reef like place where under him is the Primordial Soup of all life that everyone is currently at. Everyone is together cause of Instrumentality. But seriously, go watch End of Eva right now. Then come back and make another thread titled "WTF DID I JUST WATCH?"