Duality

WHO gave thee such a ruby flaming heart
And such a pure cold spirit? Side by side
I know these must eternally abide
In intimate war, and each to each impart
Life from its pain, in every joy a dart
To wound with grief or death the self allied.
Red life within the spirit crucified,
The eyes eternal pity thee: thou art
Fated with deathless powers at war to be,
Not less the martyr of the world than he
Whose thorn-crowned brow usurps the due of tears
We would pay to thee, ever ruddy life,
Whose passionate peace is still to be at strife,
O’erthrown but in the unconflicting spheres.