This is a very interesting instrumental composition, unusual and original. Although, I haven't listened to much prog rock, so maybe that's why it seems unusual.
Overall, I'm starting to like the band more and more.
Bow down and hear our cry,
Our earthly rulers falter,
Our people drift and die,
The walls of gold entomb us,
The swords of scorn divide,
Take not thy thunder from us,
Take away our pride.
G.K. Chesterton: English Hymnal