Weft's monastic order's trademark Knowledge Web is sometimes incorrectly linked with their conception of souls.
Soullessness is a term occasionally used to describe individuals with the innocent? syndrome. (Usage note: the term 'soulless' should be avoided because it is highly insulting to suggest a creature with a mental illness is less of a 'person' than anyone else.)
Some understandings of mindbonds involve a connection created between two souls.