Life is like Tarzan, swinging from a thin vine
from GZA (Ft. Ghostface Killah, Raekwon & U-God) – Investigative Reports Lyrics on Rap Genius
Meaning
Tarzan was a wild child that lived in the African jungles by the Mangani “great apes”; he later came across civilization only to push it away and return to the wild as a adventurer.

He is basically saying that life is like swinging on a vine; sometimes you keep swinging and sometimes you break the vine and fail.
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