Where Spirit Lumyst Water and Life Lumyst Water met, the center of each tributary suddenly widened to form a vast circular lake several kilometers in diameter. This intertwining of fundamentally opposite fluids was like trying to mix oil and water, an intuitively unnatural process. Hence, this double bottleneck that might remind one of some kind of blood clot.
Except here, the two liquids didn't just mix reluctantly. Only the destruction or total transmutation of one into the other was acceptable, and it happened that the collision of these waters with opposing polarity was particularly explosive. Every second, the translucent water of the lake would light up with billions of 'fireflies,' a recurring symptom of a new fusion attempt between these diametrically opposed water molecules.