Hee hee...gotta ya in a tangle? I'll help you out a bit...
It's nothing spiritual, moral nor psychological... (i.e. reflection upon one's self is out the window...)
You can't SEE it (hence the riddle...a reflection you CANNOT see) but it can be sensed...
It's intangible (in otherwords, you can't physically touch it)...
It DOES actually exist but only in certain places...
Have another bash and I'll drop more clues if you need them...