This is not because
such words are supposed to have some kind of vitalistic tinge which will redeem what we have to say from apparent
mechanistic suggestions, but because they are in fact required for any genuine understanding of the world and any sound
explanation of how things come to be.
We don't know that for a fact in the real data, but to believe that they do on the basis of thinking you see
such patterns (and with no reasonable
mechanistic explanation) is sort of like continuing to believe Yuri Geller can bend spoons with his mind after James Randi has clearly demonstrated how he can just as convincingly bend spoons using slight - of - hand.