Considering the culture(people way of think, without studies and without follow religion or some concepts) here we would believe at unnatural things(above the material plane) - like myths, legends, and other things like this - supersticions - but analysing what i know about this theme - what isn`t much - if i see all the context - i would say that is something what can "hit" or affect in some way your soul, hurt your spirit - the spirit is ethereal, your constitution is the same what ours bodies are made, but is a different build, cause of this you can`t see the spirit - only that people what have an organic disposition to do it - this is about the universal energy and is from what all things are formed.
spirit (would be like a corpse from a different material plane and constitution - but coming from the same universal energy)
The spiritual damage can be defined of different meanings - what your spirit do when you sleep have consequences in your material body, and what you do here when you are up have consequences in your spirit and your spiritual energy - even more when it comes to feelings.
