Kiss me.

" A kiss is a lovely trick designed by nature to stop speech when words become superfluous."

~ Ingrid Bergman.

The third theory that I found was from a religious or sacred origin. There have been examples from around the world, as early as 2000 BC, which show that people could have brought their faces together to symbolise spiritual union. Even in the Indians culture, it was believed that the exhaled breath was part of the soul, and by two people bringing their mouths together, showed the joining of their souls. At one stage it was even thought that people found kissing pleasurable because when the two lips met during kissing, an electric current was generated.