The poetry form of this poem is a sonnet. A sonnet is a poem of fourteen lines using any of a number of formal rhyme schemes, in English typically having ten syllables per line. This poem has fourteen lines, a rhyme scheme, and about ten syllables per line.
Strength and Fear
What smile hast thou that moves me so to love?
What strength of heart, that moves thee so to smile?
Wherefrom thy strength–for I have none–yet, while
Thine own, hast brought me such abundance of?
My strength has gone away from me, my dove
Why then hast thou the art to so beguile
Those spirits, of those deaths, which, as my trial,
Belabour soul and heart? I strove, above,
To be the stronger spirit. Yet inspired
By strength–and by thy fear–it now becomes
My heart to strive for joy, or even higher–
Strive, though I have not the strength required
To strive–for such is when, thou must have come
Alive! And so we live again! But why?