Just because the specific instance is mysterious, doesn't mean the basic concept isn't in effect.
It's just a matter of the sheer amount of things we do, and that we forget we've done. So to us its a mystery, but to God, it's cause and effect plain as day. Thus its best to keep the concept in mind, and not worry about the specific manifestation. We just don't have all the data.
“It’s only a movie, Ingrid.”