For example, the Mist Swamp was actually a spirit land, strictly speaking. Its uniqueness lay in the naturally derived mystical fog, and under the influence of that fog energy, the special and valuable biological resource known as the Mist Half-Snake People was eventually born.
Each spirit land is an outcome of various coincidental factors on the Starry Sea Floating Land. They possess various magical effects; some can produce unique special resources, some can accelerate the growth rate of flora, and some can enhance the attributes of living beings... In short, spirit lands themselves are considered extremely special resources.
Some spirit lands with extremely rare attributes can even compare in value to Mythical-level Starry Sea Oddities.
