Anyone who has ever been in love has had that experience when thinking about the person they love: the sensation of the presence of the beloved can fill up your mental space to such an extent that it will accompany you at every moment and in every situation. When you are in love, this presence settles within you automatically and effortlessly. It can even be reflected around you in the smallest events. If you are not in love, you can still stir up a similar experience by directing your thought toward someone and attempt to develop positive feelings toward them and thereby experience the “presence” of this person. Such experiences ar...