Feet--or Wings?

O TETHERED spirit, take for mate
No swallow-winged and windy one;
No wanderer strange and passionate
Beyond the strongholds of the sun.
And, wingèd one, beware that thou
Cast out to stars no earth-bound child,
Loving the hearth-smoke and the bough
Of lilac more than flight too wild.
Choose loneliness, before the slow
Torture of twisted leashing-strings.
Love should not be too blind to know
if the beloved hath feet — or wings!