Deep in the darkest corners of the mind,
through the corridors you will find,
the thoughts slowly skulking along,
and everything just feels so wrong,

the tricks it plays,
putting the host in a haze,
reality or not, who can tell
encompassed in an unpenetrable shell,

it blocks out the guiding light,
burying it far out of sight,
in the dark is when it does the most,
turning into your own personal ghost,

filling the brain with endless ideation,
begging you to bring it into fruition,
but if you work hard then you just might,
eradicate that suicidal parasite