We must also remember that sex is a characteristic of this
world, not of the spiritual world. When the Guardian was asked about "soul
mates" and the problem that could arise in the next world if one were to
remarry in this life, his secretary replied on his behalf, on 4 December 1954:
There is no teaching in the Bahá’í Faith that "soul
mates" exist. What is meant is that marriage should lead to a profound
friendship of spirit, which will endure in the next world, where there is no
sex, and no giving and taking in marriage; just the way we should establish
with our parents, our children, our brothers and sisters and friends a deep
spiritual bond which will be everlasting, and not merely physical bonds of
human relationship.
- The Universal House of Justice (From a message dated 27
October 1986 written on behalf of the Universal House of Justice to an
individual believer; ‘Messages from the Universal House of Justice 1986-2001’)