Trust

[dukealien]

Trusting in someone.
A swinging suspension bridge.
My balance fails me.

Very spare and evocative.  Making each line a sentence (and consequently a potentially separate, even unrelated thought) is unusual but effective:  it leads in multiple directions.

Crucial words:  "in" (not just trusting a person - "in" implies an almost religious faith or confidence, as if the person is unseen, certainly no longer present).

"[S]winging" - means it's a very small, narrow bridge, flexibly supported, turning around an axis above the walkway.  A bigger bridge would sway.  Was it wise to trust such an insubstantial structure?

"[M]y" - very important.  The speaker understands - if it's not just a figure of speech - that the implied fall is due to the speaker's own failure at least in part.  Faith may have been excessive, or the test too severe.  Or balance was never adequate.

Much in little:  quite nice.