Board Thread:Off Topic/@comment-26893431-20151111154449/@comment-26141046-20160627143836

No one really knows. Some people seem to think that it refers to the whole of Skyrim, others High Hrothgar, and others believe it is the Throat of the World. We may never know for certain.

All we know is this: The Snow Tower is in chaos. Skyrim without a High King(Kingless), the country effectively broken in two by the outlawing of Talos worship(Sundered), and with  a civil war brewing. By the time of The Elder Scrolls V, the civil war had escalated further(Bleeding).