"Brilliant Disguise" has been called "a heart wrenching song about never being really able to know someone," and "a song about the doubts and struggles of married life."
"Brilliant Disguise" nazvana je "srceparajućom pjesmom o tome kako se nekoga nikada ne uspijeva uistinu upoznati", i "pjesmom o sumnjama i poteškoćama bračnog života."