The Existence of Giant Trust

Tell me, large bridges,
how did you come to believe

that you would not fall
into the waters below?

You, who are your cables
and concrete and paint, 

what makes you so sure?
You seem so sure.

Would you call your trust
trust in yourself?

Or are your trusses
separate from your stresses?

I'm asking if you believe
in your design or your parts

your relations or your 
lucid dream song?