"Immortality" is the timeless, imperishable existence of the personality of a righteous man beyond matter and space, beyond his physical life.
Immortality was originally intended for the perfect Man by God as His supreme Creation.
Man's life according to the Will of God, revealed to man in His Commandments, leads to righteousness, to immortality of his spirit, opens up the possibility of achieving, acquiring Eternal Life in the spiritual sphere of Being.