I walk towards the figure that's extending it's hand
I move to enter past the gates yet I'm met with it's grasp

from Cunninlynguists (Ft. Tonedeff) – The Gates Lyrics on Rap Genius

Meaning

He goes to walk past the Gates but is stopped by the figure, which in fact is Saint Peter.

It extends it’s hand, indicating an act of kindness, not evil. Saint Peter isn’t prejudice, and welcomes everyone the same. This paints a positive light of the Saint, which further on in the verse is a very important thing.

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