As your another victim,fuck Insomnia!
You've turned my mind into Godforsaken Sanctum

from Shoayb khan – Insomnia Lyrics on Rap Genius

In the last bar of his First verse, he clearly discloses that he was actually talking about the Sleeping disorder which pushed him in all these miseries.
Now he feels like his brain is just an abandoned shrine, where only the lonesomeness gathered upon his soul.

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