The annual triduum in honor of St. Therese will be celebrated Sept. 29 to Oct. 1 at the Carmelite Monastery, 1400 66th Avenue and Old York Road in Philadelphia.

The rosary and litany will be prayed each day at 6:45 p.m., followed by celebration of the Mass at 7:30.

The triduum this year is significant since it anticipates the arrival of the relics of St. Therese and her parents to Philadelphia for Magnificat Day, Nov. 9. The relics will be kept permanently for veneration at Carmelite Monastery in Philadelphia after Magnificat Day.