Guns salute life, rapidly, that's the ritual
While killing someone, a gun salutes the life of the person it’s defending, the same way a murdering soldier salutes his own nation while still inflicting damage on the other country.
Guns also literally salute a life at the funeral of a soldier, when they shoot a blank as a mark of respect.
All of this killing and mourning of lives happens so frequently and so rapidly in Nas' life, that it becomes a ritual.
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