Angels are stunned when they hear that there are people who credit everything to nature and nothing to the Divine, as well as people who believe that their bodies, in which so many wonders of heaven are gathered, are fashioned out of nature, and even that this is the source of our rational capacity. On the contrary, if people would just raise their minds a little, they could see that things like this come from the Divine and not from nature, and that nature was created simply to clothe the spiritual and responsively represent it on the lowest level of the design. They compare such people to owls, which see in darkness, but see nothing in the light.
from Heaven and Hell, Section 102
Secrets of Heaven 