Miasma in the 'Abyss Altar Area' was like a slow poison that would slowly destroy your body from the inside out by corrupting it severely.
It 'preferred' torturing its victim slowly and as painfully as possible before finally killing it.
Many of its victims were in fact still wandering around in the form of twisted, mindless creatures cursed to wander everywhere with a corrupted body and mind.
Miasma in the 'Wailing Hills' area, on the other hand, is more 'active' and seems to 'prefer' killing its prey fast and efficiently before using their body as its toy.
'The pressure has already started to increase…'
Miasma seems to have already noticed that Jareth managed to cross that wall of miasmic collision and safely made it to this side.
Now it's started to repel and pressure Jareth with the flowing miasma in the environment.
