Since the Catholic Church, instructed by the Holy Ghost, has, following the sacred writings and the ancient tradition of the Fathers, taught in sacred councils and very recently in this ecumenical council that there is a purgatory, and that the souls there detained are aided by the suffrages of the faithful and chiefly by the acceptable sacrifice of the altar, the holy council commands the bishops that they strive diligently to the end that the sound doctrine of purgatory, transmitted by the Fathers and sacred councils, be believed and maintained by the faithful of Christ, and be everywhere taught and preached.Purgatory, as a term, has never been used in the Syriac East (and is not required by the Church), however, there are a plethora of prayers in our Liturgies that remember ... our souls and the souls of our fathers, our brethren, our elders, our teachers, our departed ones and all the faithful departed. This remembrance is for people, who we simply do not know where they are. We ask God to have mercy on them as they are now asleep in death in a process of purification.
In addition to this, our great Syriac Fathers. St Ephrem and St Aphrahat. Both spoke about the sleep of the soul in death. St Ephrem, continuously compares sleep to death and awakening to the resurrection. He states:
Sweet is sleep to the weary, so is death to him who fasts and watches. Natural sleep slays not the sleepr, nor has Sheol slain, nor does it so now. Sleep is sweet, and so is Sheol quite... Sleep strives not to hold the sleeper, nor is Sheol greedy. Behold, sleep shows us how temporary is Sheol, for the morn awakes the sleeper, and the Voice raises the dead - Carmina Nisibhe also says:
Behold how (the dead) are encompassed in Sheol, and awaiting the great day, till He come to delight them, and bring hope to the hopeless
In the same set of hymns, St Ephrem makes a distinction between what he calls the flames and sheol.
One road, my brethren, lies before us all: from childhood unto death, and from death unto the Resurrection; thence branch out two ways, the one to the flames, the other to ParadiseClearly suggesting that Sheol is temporary, while Paradise and the flames are eternal. A doctrine completely consistent with the faith declared by the Council of Trent.
In summary. The East and more specifically the Syriac-East's theology is NOT incompatible with the doctrine of purgatory. St Ephrem called purgatory Sheol but whatever the name that is given to it, it is important that we pray for our departed, so that not only may their suffering be quickened but also to teach our kids to do the same when we depart.
For more info here is a video of a Syriac (Orthodox) Bishop defending prayers for the departed because they are in a state of suffering before Paradise.
Happy feast day to all the Latins out there!
Pray for the departed. Especially those who have no one to offer sacrifice on the Altars of the Lord for them.
Through the Prayers of the Birth-Giver of God Maryam and Mor Ephrem. God Bless you all.