From the fortress
I leave for my course of tonight's achievements

from Living Legends (Ft. Slug) – Night Prowler Lyrics on Rap Genius

Meaning

Slug is somewhat of an introspective loner and views his home as a place of safety, or a ‘fortress’. He is willing to leave his fortress in hope of ‘achieving’ victory tonight in the conquest of a girl.
The “fortress” could also be understood to mean the emotional barrier Slug as built around himself, a barrier he only lets down when trying to score with a girl.

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