"Guaranteed" is a song from the Into the Wild soundtrack, deeply rooted in the journey of American wanderer Christopher McCandless. Like the other songs on the soundtrack, it explores McCandless's decision to give up his savings and travel across the United States to live in solitude in the Alaskan wilderness. The director of the film felt this song perfectly captured the musical voice of McCandless's character. Eddie Vedder has noted that specific lyrics, like "Don't come closer or I'll have to go," were written with McCandless's sister, Carine, in mind. At its heart, the song channels the powerful, often conflicting, pull of freedom and connection.