Soul, Wherefore Fret Thee?

Soul, wherefore fret thee? Striving still to throw
Some light upon the primal mystery
Through rolling ages pondered ceaselessly,
Whence thou hast come, and whither thou shalt go!
Some deepest, secret voice gives thee to know
How, older than created earth and sea,
Thou hast been ever, shalt forever be,—
Unborn—undying! Thy own life doth show,
Yester, to-day, to-morrow, but a chain
Of dusky pearls, whereof we seek in vain
End or beginning, though perchance the one
We call To-day gleams whitest in the sun.
Ay, Soul, thy very Self is unto thee
Immortal pledge of Immortality!