I find the Holy Spirit is unlike a person in that he/it can be in many places at once, yet in all these places be like a person, all at once. And not necessarily humanlike, except with qualities we find quite human such as speech. And taking all sorts of forms, both animate and inanimate. So really Father and Son are persons, while Holy Spirit is something/someone different. Yet they work together, as do believers. Human persons are in the image of the Father, but not in the image of the Holy Spirit.
