In order to obtain the plenary indulgence, in addition to performing the specific works mentioned above, the following conditions must be fulfilled:
1. Detachment from all sin, even venial.
2. Sacramental confession, holy Communion, and prayer for the intentions of the pope. These three conditions can be fulfilled a few days before or after performing the works to gain the indulgence, but it is appropriate that Communion and the prayer take place on the same day that the work is completed.
A single sacramental confession is sufficient for several plenary indulgences, but frequent sacramental confession is encouraged in order to obtain the grace of deeper conversion and purity of heart.
For each plenary indulgence that is sought, however, a separate holy Communion and a separate prayer for the intentions of the Holy Father are required.
The prayer for the intentions of the Holy Father is left up to the choice of the individual, but an Our Father and Hail Mary are suggested.
This story was originally published on CNA on April 11, 2022, and was updated April 3, 2023.