"The basic concept is simple: Huge bio-machines called Evangelions, or Evas, piloted by specially recruited teenagers, battle monstrous giants known as Angels that are wreaking havoc on the human survivors of a global calamity. However, Anno and his team at the Gainax animation studio created a world highly developed not only visually — the mechanics of the Evas in particular were so realistic that they seemed less drawn than designed — but also narratively, emotionally and spiritually. The Eva pilots — especially the troubled, sensitive Shinji, whose coldly calculating dad had developed the Evas — were strongly individualistic types whose turbulent lives were as much a part of the series’ appeal as its titanic Eva-versus-Angel battles. The show also incorporated a melange of religious symbolism, and a wealth of psychological and philosophical themes reflecting Anno’s own investigations and beliefs, as well as his long struggle with depression."