…true life is not the life of the flesh but the life of the
spirit. For the life of the flesh is common to both men and animals, whereas
the life of the spirit is possessed only by the pure in heart who have quaffed
from the ocean of faith and partaken of the fruit of certitude. This life knoweth
no death, and this existence is crowned by immortality.
- Baha’u’llah (The ‘Kitan-i-Iqan’)