― Neil Gaiman, Good Omens: The Nice and Accurate Prophecies of Agnes Nutter, Witch
It's our higher executive functioning that makes us unique among animals.
There is no spiritual difference, that I can see. Our thoughts about spirituality are probably unique, but that falls under the higher executive function umbrella. When I say there's no spiritual difference, I mean that there's no innate difference in our spiritual qualities or value. We are part of the same unidentified spiritual energy that exists in all things. (Maybe some awesome quantum physicist will figure that out someday, but until then I'm calling it spiritual energy, because that's how it functions.)
Knowing that we - humans - are basically smart, distrusting animals who are connected to every thing and every one else in the world, makes me want to put as much compassion out there as possible. I think this is something most people do, with varying degrees of awareness, ambition, and success.
Basically, we're all just people, trying to get along.