Human beings are just physical objects.
The concept of an immaterial mind or soul makes little sense. Just because we don't understand how God does it, it doesn't mean God doesn't do it. Likewise, mysteriousness is no reason to reject the idea of the soul. In the old Star Trek episodes, the transporter worked by breaking down the original person into atoms, beaming up the atoms themselves, and then reassembling the atoms back into the person. Over time I get my hair cut, shed my skin cells, bleed every now and then, etc.