Yes.. used to boggle my teachers with that one, myself.
Specifically it is black lung caused by volcanic ash.
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Defender for the Light -
Goodness knows there is a lot of Dark out there!! - Where are my matches?!?
Wandering Soul - Finding my life's calling is Bodhisattva
You are what your deep driving desire is; As your deep driving desire is, so is your will; As your will is so is your deed; As your deed is so is your destiny.
The Upanishads