The message of immortality from death is central to human life. All the world's religious scriptures, and all human endeavors, are directed toward this immortality.
Alexander the Great, Nachiketa, and King Janaka depict the state of humanity's heart. The answer to that quest is revealed in the sacrifice of Christ, and His resurrection, having defeated death, has made it accessible to all, as an atonement for all mankind, and Christ has revealed the path to truth and life for all.
The Lord Himself has come to us as immortal water and immortal bread.