Quora Answer: Have I Committed Shirk by Celebrating Halloween?
The following is my answer to a Quora question: “I never knew Halloween was a pagan festival and I used to celebrate
it all the time. Have I been commuting shirk?”
Shirk is the act of attributing power or authority to other than Allah (s.w.t.). You cannot accidentally commit shirk anymore than you can accidentally worship another deity. I would assume you celebrated Halloween as a commercial event, attending parties. That is not shirk. It would be shirk if your celebration of Halloween in the manner of the ancient druidic tradition of Samhain, and engaged in human sacrifice and offerings to the Tuath Dé.