Well, if they are already dead, i don’t think it’s bad, I just think it wont help. But if they’re still alive, I guess you could pray for a change of heart, conversion, and forgiveness.
The Catholic Church highly recommends us to pray for the dead. They could be in purgatory and need our prayers. Praying for the dead dates back to the old Testament. And when Mary appeared in Fatima, one of her requested intentions when praying the rosary was to pray for the poor souls in purgatory.
Below is a little Catholic Doctrine taken online from the “new advent” website…(not sure of the validity of this website, but this particular Doctrine seems correct. You can always just read the Catechism.)
Purgatory (Lat., “purgare”, to make clean, to purify) in accordance with Catholic teaching is a place or condition of temporal punishment for those who, departing this life in God’s grace, are, not entirely free from venial faults, or have not fully paid the satisfaction due to their transgressions.
The faith of the Church concerning purgatory is clearly expressed in the Decree of Union drawn up by the Council of Florence (Mansi, t. XXXI, col. 1031), and in the decree of the Council of Trent which (Sess. XXV) defined:
“Whereas the Catholic Church, instructed by the Holy Ghost, has from the Sacred Scriptures and the ancient tradition of the Fathers taught in Councils and very recently in this Ecumenical synod (Sess. VI, cap. XXX; Sess. XXII cap.ii, iii)
that there is a purgatory, and that the souls therein are helped by the suffrages of the faithful, but principally by the acceptable Sacrifice of the Altar; the Holy Synod enjoins on the Bishops that they diligently endeavor to have the sound doctrine of the Fathers in Councils regarding purgatory everywhere taught and preached, held and believed by the faithful” (Denzinger, “Enchiridon”, 983).
~Peace
