Truth.

His eyes scavenge a shadow,
There's none but a burrow,
Where once dwelt a weasel,
Who tricked a rabbit and killed it.

He deciphers this as an omen,
That the world only belongs to bad men,
Good men are supposed to die,
If not, then mourn and cry.

He pays gratitude to the weasel,
A mere animal who is a teacher,
But isn't this how the world has always been?
The rare ones inculcating to survive in life's run.

Cain had been through the same,
A crow taught him insanity,
And till now we can't be tamed.