Trunk-or-Treat October Blast: Hayrides, carnival games, face painting and decorating pumpkins.Christian Life Church, 775 Harold Dow Highway, Eliot. 2-4 p.m. Saturday.

Pagans Celebrate Samhain: Ritual and potluck. Free. First Universalist Church of Auburn, 169 Pleasant St. 1-4 p.m. Sunday.

Sean Fleming benefit organ concert: Organ recital. Free, donations suggested. St. Andrew’s Church, 11 Glidden St., Newcastle. 3-4:30 p.m. Sunday.

Brunswick Weekly Tibetan Meditation: Come and join us while we learn about the principles of meditation. $10 suggested donation. First Parish Church, United Church of Christ, 9 Cleaveland St., Brunswick. 5:30-6:45 p.m. Monday.

Hallowell Buddhist Meditation: Learn about the principles of meditation and philosophy. This is not a religious class. All are welcome. Class will begin with a short lecture, followed by guided meditation, group discussion and more meditation. $8 suggested donation, St. Matthew’s Episcopal Church, 20 Union St., Hallowell, 201-805-8683, 5:30-6:45 p.m. Wednesday.

Prayer, Promises, Hope and Faith: The Rev. Jeff Monroe continues Bible Study series every Wednesday at 5:30 p.m., 656 Route 1 in Scarborough, where the parish shares worship space with the West Scarborough United Methodist Church.

To submit an item for the Religion Calendar, go to MaineToday.com and click on the calendar tab.