"Building a Mystery" is a song by Canadian singer-songwriter Sarah McLachlan from her fourth studio album, Surfacing (1997). At a live performance, Sarah explains the song as being "basically about the fact that we all... have insecurities to hide, and we often do that by putting on a facade." She also goes on to say that "unfortunately, if we just be who we are, that's usually the more attractive and beautiful thing".

Sarah Ann McLachlan OC OBC is a Canadian singer-songwriter. As of 2015, she had sold over 40 million albums worldwide. McLachlan's best-selling album to date is Surfacing, for which she won two Grammy Awards and four Juno Awards. In addition to her personal artistic efforts, she founded the Lilith Fair tour, which showcased female musicians.