All spirits are created from eternal element which is much finer than earthly element. Spirits can be seen by spiritual eyes not by physical eyes. And seeing that we as mortals are dualistic in nature (having both a spirit and physical body)----we CAN see intangible spirits. If we have...
And I am having difficulty with understanding your reasoning. The term---Creature can be understood either literally or figuratively (so it is not the best term to use). Satan is a spirit having no physical body. Mortals are dualistic in nature having both a spirit and a mortal body...