Folded and Hidden

"The greatest lessons of nature are the lessons of the fresh, eternal qualities of being: The variety and freedom, the great amplitude, rectitude, impartiality—each toward all and nothing supersedes the rest;

That eternal tendency to perpetuate and preserve which is behind all nature; The indefinable hard something that is the old heroic stamina of nature, inexorable, onward, resistless, to proceed with single purpose toward the result necessitated, and for which the time has arrived.

...

What is nature but change, in all its visible, and still more its invisible processes? Nature keeps up her long and harmless throes, her vital, copious, eternal procession, An infinite number of currents and forces, and contributions, and temperatures, and cross-purposes, Whose ceaseless play of counterpart upon counterpart brings constant restoration and vitality

...
I fully believe in a clue and purpose in nature,

Enfolding itself all processes of growth,
effusing life and power, for hidden purposes.

The sun and stars that float in the open air,

The apple-shaped earth and we upon it,

Earth’s soil, trees, winds,

Waters that encompass us, tumultuous waves—

Surely the drift of them is something grand,

The purport of objective nature is doubtless folded, hidden, somewhere here;

I do not know what it is except that it is grand, and that it is happiness."

- Walt Whitman (1819 - 1892)
Nature, Containing All