that upas certainty which forbade all hope

If T. E. Lawrence, famously known as "Lawrence of Arabia", was alive today, I think he might have amended that insight, or, at least, clarified it:

that upas certainly which postpones all hope [in expectation of the hereafter]

T. E. Lawrence also wrote:

"All men dream, but not equally. Those who dream by night in the dusty recesses of their minds wake in the day to find that it was vanity: but the dreamers of the day are dangerous men, for they may act their dream with open eyes, to make it possible.
—T. E. Lawrence from "The Seven Pillars of Wisdom"