We can sing out beyond ourselves, we can sing a faith we don't completely feel on a given day, but the words for that should have integrity. They should be grounded in the Bible, for example. That sounds very serious. For example, I've written a series of hymns based on Medieval Epiphany legends. Herod is spooked.
Hymns can reflect that.
Tell us some of what you like to read. Walter Brueggemann is someone I've read a lot, learned a lot from, and been inspired by, both in my preaching and my poetry. Brueggemann is a Professor of Old Testament at Columbia Seminary in Georgia. He often expounds particular Bible passages in hard hitting ways, very contemporary and probing. The late May Sarton is a poet I've read a lot and like very much.