When asked what religion she follows, she replied in a 1996 interview, "I don't follow any organized religion, but I do believe in the idea of god as a verb — being love and light, and that we are part of everything as everything is part of us." McLachlan covered the British Punk/New Wave band XTC's song "Dear God" in a 1996 tribute CD—
Dear God, hope you got the letter and
I pray you can make it better down here
You're always letting us humans down
The wars you bring, the babes you drown
Those lost at sea and never found
And it's the same the whole world 'round
The hurt I see helps to compound
The Father, Son, and Holy Ghost
Is just somebody's unholy hoax
If there's one thing I don't believe in
Although she didn't write it, when asked if she had "any reservations from an ideological standpoint about covering the song," McLachlan replied, "None whatsoever."
She has also reported herself as an agnostic.