The Jubilee Vatican decree lists the corporal and spiritual works and presents many ways to put them into practice.

O gentle Heart of Jesus, ever present in the blessed sacrament, ever consumed with burning love for the poor captive souls in Purgatory, have mercy on them. Be not severe in your judgments ...

Such tainted souls, though saved ... The Church encourages us to pray for the dead since they may be in Purgatory needing our prayers. Praying for the dead is quite biblical.

A Catholic perspective on ghost stories reveals why some apparitions may be souls in Purgatory — and why the Church urges us to pray for them.