Fifty mid-stage Qi Refining Spirit Gathering Arrays stacked together have a spiritual energy density equivalent to a single Spirit Gathering Array at the early stage of Ecstasy.
The problem is not only the density but also the dispersal. A Spirit Gathering Array's high concentration of spiritual energy attracts energy into it, with minimal external effect, but dispersal is different.
A place continuously overflowing with spiritual energy equivalent to the early stage of Ecstasy Spirit Gathering Array... even a Golden Core Master would be drawn here.
Just discussing this spiritual energy, one could claim it's a super spirit land. An early-stage Ecstasy cultivator could meditate and cultivate anywhere, while a Golden Core Master could set up a Golden Core Gathering Spirit Array—one that's very economical on Spirit Stones. Who dares say it's not a super spirit land?
And that's not all; the biggest possibility is... the emergence of a treasure.