From midnight August 1st to midnight August 2nd, you can gain the “Portinuncula” Indulgence. To obtain the Portiuncula plenary indulgence, a person must visit the Chapel of Our Lady of the Angels at Assisi, or a Franciscan sanctuary, or one’s parish church, with the intention of honoring Our Lady of the Angels. Then perform the work of reciting the Creed and Our Father and pray for the Pope’s designated intentions. You should be free, at least intentionally, of attachment to venial and mortal sin, and truly repentant. Make your sacramental confession 8 days before or after. Participate at assist at Mass and receive Holy Communion 8 days before or after.
The Portiuncula indulgence is the first plenary indulgence that was ever granted in the Church. There were indeed indulgences at all times, but they were only partial, and only a partial remission of the temporal punishments could be obtained by them. He who gains the Portiuncula indulgence is freed from all temporal punishments and becomes as pure as after holy baptism. This was also the reason why Pope Honorius was astonished when St. Francis petitioned for the confirmation of this indulgence, for such an indulgence, up to that time, had been entirely unknown. It was only after he had come to the conviction that Jesus Christ himself wished it, that he granted the petition of the saint and confirmed the indulgence.