Let It Enfold You is the debut studio album by American emo band Senses Fail, released on September 7, 2004, through Vagrant Records. After finalizing their line-up, the band released their debut EP, From the Depths of Dreams, in 2002, which attracted the attention of Drive-Thru Records. The label signed Senses Fail; it had a distribution deal with MCA Records, which allowed them to acquire acts from Drive-Thru. Recording for the band's debut occurred at several studios in New Jersey in April 2003 with producer Steve Evetts. Additional recording took place at the end of the year. Described as an emo and screamo record, several of the songs on Let It Enfold You were influenced by poetry and literature.

Prior to the release of Let It Enfold You, Senses Fail went on a co-headlining tour of the United States with Moneen, a supporting slot for Hundred Reasons in the United Kingdom, a headlining US tour, and a stint on Warped Tour. Another headlining US tour occurred at the end of the year, and was followed by a European tour with labelmates From Autumn to Ashes and Emanuel. "Buried a Lie" was released as a radio single on February 8, 2005. Senses Fail toured the US thrice in 2005: appearing on Taste of Chaos and Warped Tour, and then closing the year with Saves the Day. "Rum Is for Drinking, Not for Burning" was released as a single on September 11, 2005; that same month guitarist Dave Miller was replaced by Heath Saraceno of Midtown.

Let It Enfold You received mixed reviews from critics, some of whom commented on frontman Buddy Nielsen's vocals, and others calling the music derivate. The album peaked at number 34 on the Billboard 200, and number two on the Independent Albums chart. It has since been certified gold in the US by the Recording Industry Association of America. Nearly half of the album's songs has appeared on the compilation album Follow Your Bliss: The Best of Senses Fail in 2012. Senses Fail has performed the album in its entirety in 2014, 2015, and 2021.