From the Handbook of Indulgences
Visiting a Church or an Oratory on All Souls Day
A plenary (“full”) indulgence, which is applicable only to the souls in Purgatory is granted to the Christian faithful who devoutly visit a church or an oratory on (November 2nd,) All Souls Day.
Requirements for Obtaining a Plenary Indulgence on All Souls Day (2 Nov):
-Visit a church and pray for souls in Purgatory
-Say one “Our Father” and the “Apostles Creed” in the visit to the church
-Say one “Our Father” and one “Hail Mary” for the Holy Father’s intentions (that is, the intentions designated by the Holy Father each month)
-Worthily receive Holy Communion (ideally on the same day if you can get to Mass)
-Make a sacramental confession within 20 days of All Souls Day
-For a plenary indulgence be free from all attachment to sin, even venial sin (otherwise, the indulgence is partial, not plenary, “full”).
You can acquire one plenary indulgence a day.
A partial indulgence can be obtained by visiting a cemetery and praying for the departed. You can gain a plenary indulgence visiting a cemetery each day between 1 November and 8 November.
These indulgences are applicable only to the Souls in Purgatory.
A plenary indulgence, applicable only the Souls in Purgatory, is also granted when you visit a church or a public oratory on 2 November.
While visiting the church or oratory say one Our Father and the Apostles Creed.
A partial indulgence, applicable only to the Souls in Purgatory, can be obtained when saying the
“Eternal rest … Requiem aeternam…” prayer.
Requiem aeternam dona eis, Domine, et lux perpetua luceat eis. Requiescant in pace Amen.
Fidelium animae, per misericordiam Dei, requiescant in pace. Amen.
Eternal rest grant to them, O Lord, and let perpetual light shine upon them. May the souls of the faithful departed, through the mercy of God, rest in peace. Amen.