Once upon a time, Halloween (much like Christmas) was a day set aside by a pope in response to a popular existing pagan holiday on that day. More specifically, the day was All Saints Day, which was moved from May 13 to November 1 in order to steer the celebration from a pagan emphasis to a Christian one. All Saints’ Eve, or Halloween, was also set aside (“hallowed”) as a special day for remembrance and worship.
Most of us do not celebrate either a pagan holiday or a Christian one. But for those interested, reflecting on God’s goodness to those who have gone before is not a bad idea on Nov 1, October 31, or any other day.
Here is a contemporary English version of a classic All Saints’ Day prayer (from the Church Society’s English Prayer Book):
And we bless your holy name for all your servants who have died in your faith and fear. Give us grace to follow their good examples so that with them we may inherit your eternal kingdom. Grant this, O Father, for Jesus Christ’s sake, our only mediator and advocate.