Walt Whitman is a multi-faceted poet, not least of all - in his free-flowing language - spiritual:
A Noiseless Patient Spider - Walt Whitman
A noiseless, patient spider,
I mark’d, where, on a little promontory, it stood, isolated;
Mark’d how, to explore the vacant, vast surrounding,
It launch’d forth filament, filament, filament, out of itself;
Ever unreeling them - ever tirelessly speeding them.
And you, O my Soul, where you stand,
Surrounded, surrounded, in measureless oceans of space,
Ceaselessly musing, venturing, throwing, - seeking the spheres, to connect them;
Till the bridge you will need, be form’d - till the ductile anchor hold;
Till the gossamer thread you fling, catch somewhere, O my Soul.