On the First, regular NPCs make numerous references to "the Source" as a physical location, specifically in Lakeland. These people have no clue about the nature of reality and the First's status as a shard/reflection of our home world, also known as the Source. Instead, we often hear casual mention of the Source in places like leve quest text, fishing holes, and random conversation.

What is "the Source" they're referring to? Is it just the 'source' of the river in Lakeland? Why is it named that, from an in-universe context? Why did the devs name it that, given that it makes things needlessly confusing? Is there any significance to the connection between Lakeland and Mor Dhona, which is the 'source' of aether in Eorzea?