However, in difference, at least one compared value is lacking. It was this detected difference which the Bell-ringers transmitted to the Pillar of Song, and which the High Augur heard, all the way from Raggath and Yagar. It is the sound which initiated the Dark Dance Cycle, a ritual rarely performed this time of year, but which the omen suggested, and with which the ancient tables corresponded favorably.

Source: The Trial of Benda – Quatrian Folkways – Medium