(Are you seeing Jesus? No, you're actually looking at a photo of a couple holding their new baby who is wearing a bonnet--looks like Jesus's forehead)
Grant calls it matrixing, but honestly the technical term is:
(Wikipedia) It is a psychological phenomenon involving a vague and random stimulus (often an image or sound) being perceived as significant. Common examples include seeing images of animals or faces in clouds, the man in the moon or the Moon rabbit, and hearing hidden messages on records played in reverse.
How does this apply to ghost hunting? You ever listen to the weird shit Zak comes up with on his EVP replays??? He is so out there in left field with hearing all kinds of language on his garbled recording flubs that he's kind of starting to worry me. How about the tons of orbs with faces people send in?
It is in human nature to either relate things to faces--a reflection of our own reference as humans and the importance of human faces in recognizing our people, but also in words. We often hear our own name spoken when it isn't. We identify with our name and anything sounding like a voice, we assume is calling us. Humans are rather egocentric that way. Let's look at some cool examples...
Some people see faces in orbs....
See a face in this wall?
See a screaming mouth?
I see this old photo of my knees and I see cherub faces with full cheeks, button noses, eyes, and a swath of cherub `fro above...