The word "purgatory" is derived from the Latin "purgare" ("to make clean," "to purify"), and is taken to mean as : "...the state, place, or condition in the next world, which will continue until the last judgment, where the souls of those who die in the state of grace, but not yet free from all imperfection, make expiation for unforgiven venial sins or for the temporal punishment due to venial sins and mortal sins that have already been forgiven and, by so doing, are purified before they enter heaven." (New Catholic Encyclopedia, vol. 11, p. 1034)
Catholic doctrine states that when a person dies, his soul is immediately brought to God's judgment. One who dies holy goes to heaven; if he dies in mortal sin, he is sent at once to hell; and if he dies in the state of grace but has not fully atoned for his venial sins, he is sent to purgatory (My Catholic Faith: A Manual of Religion, p. 157)
Consequently, as such a realm is believed to exist, Catholics are taught that prayers, good works, indulgences, and the Mass done by them on earth can help the souls in purgatory to be freed and admitted to heaven:
Question - How do you get a priest to perform a Mass for the Dead...By slipping him an envelope...
Okay - what point am i missing about purgatory...ps i do not know what cc is...