The Rubaiyat: Quatrain XXXIII

"Then to the rolling Heav'n itself I cried,
Asking, "What Lamp had Destiny to guide
Her little Children stumbling in the Dark?"
And--"A blind Understanding!" Heav'n replied.

This is the thirty-third quatrain of the FitzGerald's Rubaiyat. The previous quatrain mentioned about the door which can not be opened and the opaque veil and in their separate spheres the seeker and the seeked realize and diffuse until they are one, whole and indivisible. In this quatrain the poet questions loudly - to the rolling heaven above I implored, asking for the way forward. I begged to show me the way, a lamp to be provided by that hidden hand to her countless little children that are stumbling in the dark unaware. We (the Children) are stumbling in the dark for we do not know much. We do not know why we are here, where we came from, where we are going. We are groping for answers, but there are none to come. And to our prayers, the Heaven's answer is "A blind Understanding!".

Could 'a blind understanding' mean we humbly accept what is happening, even though we do not know why it's happening for we can not see (we are blind to it for it is beyond our realm). We accept what is to to become of us and our lives with the utter understanding that it will happen irrespective and not get too much caught by in the why and how of it. One may not know where he came from, where he is going or what lies ahead in the path or even what his fate and actions lie in front of him. But even as we grope in this darkness, we must see the light (and come to understand) that the essence is to live and live it fully.