It is a Norse protection symbol called Vegvísir, which has a deep meaning. The Icelandic word literally means ‘guidepost’ or ‘direction sign’. In modern popular culture the Vegvísir is often called Runic Compass or See the Way. It is often associated with the Viking Age, which is not correct: this symbol is from the 17th century Icelandic grimoire called Galdrabók.
Nothing’s more intimate than sleeping together—not sex, nothing. You’re completely vulnerable. There’s an extraordinarily special trust and bond in the act of sleeping inches away from another person night after night.