You are the town and we are the clock.
We are the guardians of the gate in the rock.
The Two.
On your left and on your right
Compare these lines from Auden’s “As I Walked Out One Evening”: 
 But all the clocks in the city Began to whirr and chime: ‘O let not Time deceive you, You cannot conquer Time.’ 
 “The Two” in this poem seem to speak similarly on behalf of Time, Fate, etc., warning us that they have ultimate power and we don’t.
The Two