All Souls' Day, observed on 2 November in Western Christianity, is a day of prayer and remembrance for those who have passed away, grounded in the belief that the faithful on earth can assist souls in purgatory through prayer and acts of devotion. Authors like John Wesley highlighted universal love and spiritual contemplation, while Mrs. J.
Sadlier conveyed the gravity of mourning and the hope of eternal peace. Effendi Shoghi connected the day to shared devotion, presenting it as an invitation to self-sacrifice in pursuit of a common spiritual purpose. The theme unites theological teaching with communal practice, linking personal sorrow with ecumenical unity in cemeteries and religious ceremonies.