My guess is that it goes the other way: many people insist there must be something to our minds beyond what could result from physical processes in a physical brain that has evolved from much simpler predecessors, because of the profound and disturbing implications it has for what we are and what will become of us.

To be clear: the mystery is there - no-one has yet shown how minds do work - it is the assumption that it must be forever so that is a matter of faith (as is the opposite view; the issue is why a person would lean one way or the other.)