See the reason there's no light at the end of tunnel
Is cause we're really not in a tunnel, we're trapped in a bubble

from Canibus – M Sea Cresy Lyrics on Rap Genius

Meaning

Poe’s poem describes a man searching his whole life for El Dorado (which represents a mental wealth of knowledge about philosophical issues) and in the end he dies without finding El Dorado (or the light)

Canibus is suggesting that we aren’t supposed to look for the light at the end of the tunnel, because rather than being in a path leading to a state of omniscience(knowing everything) we are in a bubble, or in other words, our knowledge is, and always will be limited to the confines of the human brain and we cannot reach omniscience.

To help improve the meaning of these lyrics, visit “M Sea Cresy” by Canibus Lyrics and leave a comment on the lyrics box