Each day, shards periodically erupt from the mountain on the horizon, falling into different areas of the kingdom’s realms. Once they descend, join others to clear the Darkness. These will be a challenge to face down, but those who persist will earn something in return.
Regular eruptions provide Light for Candles
Stronger eruptions provide Light for Ascended Candles and a chance to complete Seasonal Quests

Take note of how these fallen shards appear. Stronger eruptions, for instance, tend to fall farther from the main path through each level.

The first week features a series of strong eruptions as the mountain unleashes its first wave of Darkness. Eruptions will gradually settle over those initial weeks, until they vary between days that they are strong or more moderate. These will continue to affect the kingdom after the Season ends.