God hath tried them, and found them worthy of himself. As gold in the furnace he hath proved them, and as a victim of a holocaust he hath received them, and in time there shall be respect had to them.
All Souls Day: the day we set aside for these prayers in the Western Rite, although, actually, pretty much the entire month of November is set aside for these prayers - masses for the dead are said nearly every day. Individual order (eg, the Benedictines, the Cistercians, etc) will have days celebrating "All Saints of our Order" followed by days of prayer for "All Our Departed Brethren". In parishes, the departed will be remembered by name. Some will go to a cemetery for prayers at gravesites. In the Eastern Rites, there are four such days throughout the year, called "Soul Saturdays" - they were, in part, brought into the Church from pre-Christian Slavic tradition. They serve the same purpose.
The only real difference between liturgical East and West on this teaching is that the West (at least in the Anti-western mind of the East) seems to posit a specific place. Dante draws this more evidently - a third placement of souls between Hell and Heaven. But the Roman Church teaches Purgatory is a "state of being". In that I think East and West agree: it's a thing in us. A state of being. The East teaches, really, there's only one place to go after death: into the presence of God. But for some of us that will be joy, peace, bliss, and all light and love. For some, that very concept of all that light and communion will be hellish. But we will work it out, as a long-ago friend of mine said, "roasting in the unending fires of God's love for us." That's it. Right there.
God hath tried them... As gold in the furnace he hath proved them Humans do not like to imagine a love so pure that it purifies them; or, more correctly, we do not like to imagine we're not pure enough for that love. There are parts of me that must go. Maybe there are parts that I wrongly imagine are a central part of my "identity as me" that will burn away. Right now, where I am, these parts of me feel as if they "really are me". But if they are misconceptions, if they are constructs based on false or even sinful understandings of what God wanted a human being to be, then "roasting in the unending fires of God's love for us" will fix it.
When we hear that God is calling us to be our true selves what we vainly imagine is "my true self is this dude right here right now." We imagine our choicest sins are, in fact, ourselves. "I AM WHAT I AM: PROUD TO BE A (fill in the blank)," as if we could really be anything other than the image and likeness of God's purity, God's love, God's charity. Anything less is missing the mark, anything less is sin. When God tries us, proves in the furnace, he removes all the dross: the egotism, the prideful actions, selfish ideas of sex, failed conceptions of love; it all goes away and frees our self, finally, to be.
In the 16th Century, the English Christians produced an act of devotion called "The Jesus Psalter". It, together with the Rosary of the Blessed Virgin, sustained the Church through the persecution following the English Schism. It's a collection of devotions centered around the recitation of the name of Jesus. By the end of the recitation one will have said the Holy Name more than 450 times together with an increasingly abstract set of prayers. It's starts out with "Jesus, Jesus, Jesus: Have mercy on me." The tenth petition, is "Jesus, Jesus, Jesus: send me here my purgatory."
Jesus, send me here my purgatory, and so prevent the torments of that cleansing fire, which, after this life, awaits unpurged souls.
Vouchsafe to grant me those merciful crosses and afflictions, which Thou seest are necessary to break off my affections from all things here below.
Since none can see Thee that loves any thing but for Thy sake, permit not my heart to find here any rest but a seeking after Thee.
Too bitter, alas! will be the anguish of a separated soul that desires, but cannot come to Thee, clogged with the heavy chains of sin.
Here then, O my Savior, keep me continually mortified in this world; that purged thoroughly by the fire of love, I may immediately pass into the everlasting possessions.That is purgatory - both here and hereafter - in both the East and the West: those merciful crosses and afflictions, which Thou seest are necessary to break off my affections from all things here below. It is the place where we, mere mortals, can find our perfection. That is only in the light of God's love for us.
Today we pray for the souls in purgatory and our prayers avail much. We are all part of the same church: the Saints, the LIving and the souls in Purgatory. We all pray for each other. This is the meaning of the Three Days of the All Hallows Triduum. Christ the King rules over us all: on Earth, in Heaven, and in Purgatory. To not pray this day - and every day, in fact - for the souls of the departed is to cut off the larger part of our Church not-yet in heaven. To limit our prayers to a few lucky stiffs who happen to be walking on the surface of this orb is to have a really tiny, tiny Church.