Soulmates
There are souls who, even in death, will never part. These come to us as Soulmates. They can be friends, lovers, or people that come into our lives for a very special purpose for a very short time. Regardless, those spirits are entertwined beyond this life, and into the next. As a principle, they are always sent to their new homes as a pair, for to separate one from the other could never be. As in life, so in death.