If I may ask a question (that's probably answered in the book referenced above but I doubt I'll have time to read it anytime soon) from the perspective of someone unfamiliar with Orthodoxy...
I understand the doctrines of most Western branches of Christianity concerning the afterlife. True or not, they're consistent and logical. In the Catholic view, anyone who dies in communion with the church but without perfect holiness (described in that system in a very merit-focused way), they enter Purgatory where they are cleansed of remaining sin--essentially receiving temporal punishments for sins committed in this life, and receiving merit through sufferings, prayers of those on earth, and indulgences. Disclaimer: I completely reject purgatory, indulgences and the system of racking up merit. However as a Protestant I do believe that our standing before God is based entirely on the merit of Christ--thus all who die in communion with Christ are already justified (yes, in a legal and declarative sense) though not yet fully sanctified. As to what happens beyond the grave, I don't claim to be able to know with any certainty, although the soul must become truly pure to be in God's presence and be glorified.
In the Orthodox view, if somebody dies without complete "theosis" there's no purgatory in which to suffer, yet union with God is not based solely on the merits of Christ, so I'm confused as to what is believed about how the soul could continue to become holy when this life has ended.
I've never heard of a toll-house, except for the chocolate chip cookies
I may very well be thinking in categories that are entirely separate from Eastern thought. It's a very challenging thing for me to get my head around. But many here seem to be converts, thus you've probably come from a Western mindset, so maybe you can explain in terms I'll understand?