What I've noticed around people who think that magic, witchcraft, astrology, etc. are nothing but ridicoulous superstition is that they'll nevertheless be at least slightly apprehensive about stuff that could potentially harm them, e.g. instinctively shunning a person considered to be 'bad news'
This! Only a few people know for my occult interests, including childhood friend who broke my wish for privacy and secrecy with people he knew. Many years ago, one of them confronted me at a party to try to ridicule my interests.
I tried to blow him off, but he kept pushing. In a fit of irritation, I told him "Okay, fine, care to test your theory ? Give me a lock of your hair and permission to destroy your life, and just using occult means I will. " They looked shocked and shut up, probably becasue they thought I was crazy.
(Not that i actually needed their hair, if I have met them personally. I just wanted them invested. And a marker for their cowardice.)
For his own comfort he needed to "explain" was very possibly insane, but underneath, the hind-brain world of the liminal and paranormal High Strangeness is always there (for certain kinds of magic) . An excellent section from Hyatt and Black's
Pacts with the Devil:
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Some sociologists see magic’s reemergence as a warning sign that a
civilization is entering a crisis period. But while magic may signal that our
culture is in “trouble” it doesn’t mean that magic is only a signal for
cultures in trouble. Magic existed long before sociologists and served man
more faithfully than these pseudo-scientific explanations about the
meaning of magic.
Modern people often ignore the psychological importance of the magical
gesture. Or do they?
In fact the brain is structured in such a way that events which follow
each other or look similar are assumed to be connected or causative. It has
taken humans thousands of years to see, even if for a moment, cause and
effect differently. Yet, there is a reason why events which follow each
other or are similar are seen as connected. The human brain knows that
“cause” is less important than survival. If you see “a many spotted thing”
in the jungle, don’t wait. Run in the opposite direction.
While our public image is rational, scientific and religious our actual
day-to-day experience is magical. We have strong feelings about certain
things like blood, nude bodies, our genitals, birth, death, food and hair.
Each of us have mini-cosmologies built around ourselves and family. Many
of us think in terms of luck or chance rather than cause and effect. Most of
us are so deeply affected by our developmental circumstances that we only
give lip service to rationality, logic and religious beliefs. In some non-
verbal way all of us sense how the world really works. Most of us ignore
the reality of death believing, especially if we are young, that we are
personally immune from death, ill fortune and disease.