William James, the father of psychology, used magnetic force as a metaphor to describe human connection and love. He explained that if we took a magnet and hovered it over safety pins the pins would connect to the magnet. And, if you put a paper on the magnet and hovered it over the same safety pins - the pins would still gravitate to the magnet and connect. For the pins, there is no difference between being connected directly to the magnet, or if there is a paper between itself and the magnetic force. However, humans are different.