Paradiso: Canto 10 Dante Alighieri (Ft. Henry Wadsworth Longfellow)

Paradiso: Canto X

Looking into his Son with all the Love
  Which each of them eternally breathes forth,
  The Primal and unutterable Power

Whate'er before the mind or eye revolves
  With so much order made, there can be none
  Who this beholds without enjoying Him.

Lift up then, Reader, to the lofty wheels
  With me thy vision straight unto that part
  Where the one motion on the other strikes,

And there begin to contemplate with joy
  That Master's art, who in himself so loves it
  That never doth his eye depart therefrom.

Behold how from that point goes branching off
  The oblique circle, which conveys the planets,
  To satisfy the world that calls upon them;

And if their pathway were not thus inflected,
  Much virtue in the heavens would be in vain,
  And almost every power below here dead.