Hi and thanks for the quick reply!
It does seem to provide some spirit happiness even when there’s no feast. On the attached screenshot you can see where I tried removing the priest and then re-added him. With the priest staffing the building but End the Feast set (and no supplies in the temple), I have many 5 star little vikings.
There are still some stubborn 2 star ones, presumably because there were some deaths before I built a graveyard?
On the other hand, when I was trying to have feasts but kept running out of supplies, my average happiness kept bouncing between 80 and 85%. I didn’t figure out who was getting the boost from the feasts.
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