Because atomic behavior is so unlike ordinary experience, it is very
difficult to get used to it, and it appears peculiar and mysterious to
everyone - both to the novice and to the experienced physicist. Even the
experts do not understand it the way they would like to, and it is perfectly
reasonable that they should not, because all of direct, human experience
applies to large objects.
[...]
We cannot make the mystery go away by "explaining" how it works. We will just
_tell_ you how it works. In telling you how it works we will have told you about the
basic peculiarities of all quantum mechanics.