Long before science got in the way, producers of whisky thought that the angels came down and took a small amount of whisky from the casks before bottling, this was accepted and known as:
"The Angels' Share"
During its maturation process it is expected that almost 2% of whisky is lost from the oak cask. Distillers still believe in this angelic story and so accept that heaven has a love of whisky, as much as the world.