Writing for
Goldmine magazine shortly after Harrison's death in November 2001,
Dave Thompson said that "Beware of Darkness" and "
Art of Dying" "rate among the finest compositions of Harrison's entire career". In his entry for
All Things Must Pass in the book
1,000 Recordings to Hear Before You Die,
Tom Moon names it as the first of the three "key tracks". He writes that almost every song "offers a different type of ecstasy" and in the case of "the meditative 'Beware of Darkness'", by "follow[ing] a halting, patient path toward illumination". In
The Cambridge Companion to the Beatles, Michael Frontani describes it as Harrison's "supreme warning about
maya", adding that his and Barham's attention to the orchestral arrangement on this and other songs was arguably more significant for the sound of
All Things Must Pass than Spector's Wall of Sound aesthetic. Further to Harrison's standing as the most spiritually focused Beatle, Frontani continues, the message of the line "Beware of maya" "anchored his artistic and personal life for the next three decades".
AllMusic critic
Richie Unterberger similarly views "Beware of Darkness" as one of the highlights of
All Things Must Pass, while authors Chip Madinger and Mark Easter call it a "stunning composition" that demonstrates the considerable growth in Harrison's songwriting since 1965. Nick DeRiso of the music website
Something Else! describes it as "Harrison's best album's very best song – one where he perfectly matches a lyrical meditation on overcoming life's harder moments … with the sound, mysticism and fury of one of the early 1970s' greatest amalgamations of sidemen". Writing for
Mojo in 2011, John Harris deemed it and "Isn't It a Pity" "simply jaw-dropping" ballads. In his appreciation of Harrison for
PopMatters, Christopher Guerin, the former president of the
Fort Wayne Philharmonic Orchestra, admires the "beautiful melodic structures" and heartfelt spirituality of songs such as "Beware of Darkness", adding that Harrison sings the lyrics "not as a preacher, but as an older brother".
GQs George Chesterton also rates the song "among Harrison's best", writing: Again, sung in the second person and full of pointed advice, it swishes around with new-found confidence and has some of his most elegant, yearning chord progressions as well as some of his best slide guitar playing. To outsiders there is an opaque, unknowable quality to Harrison and no amount of interviews or lyrical analysis can clear away the fog. You get the feeling that was intentional. In
Uncut magazine's August 2008 feature article on Harrison,
Neil Innes commented on the difference between Harrison's songs and those of Lennon and
Paul McCartney: "His stuff didn't always
grab you the way the other two's did. But if you listen to something like 'Beware of Darkness' – the chords in that – I mean, he's up there with
Brian Wilson ... up there with
Debussy." American rock band
Beware of Darkness took their name from the song. Having first met Harrison early in the sessions for
All Things Must Pass, In July 2016, the Harrison family referenced the song in response to the Beatles' "
Here Comes the Sun" being appropriated by
Donald Trump's presidential campaign at the
Republican National Convention. The family complained that this use of Harrison's work was unauthorised and "offensive", and later tweeted: "If it had been Beware of Darkness, then we MAY have approved it! #TrumpYourself." In 2021, the song was featured prominently in Season 2 Episode 8 ("Man City") of sports comedy-drama
Ted Lasso. In 2025, the song was used in the opening scene of
Zach Cregger's horror blockbuster
Weapons. ==Other Harrison performances==