Judging from the context, the 'vast veil' (line 35) could best be described as

Read the passage: Between me and the other world there is ever an unasked question: unasked by some through feelings of delicacy; by others through the diffi- culty of rightly framing it. All, nevertheless, flutter round it. They approach me in a half- hesitant sort of way, eye me curiously or com- passionately, and then, instead of saying directly, How does it feel to be a problem? they say, I know an excellent colored man in my town; or, I fought at Mechanicsville; or, Do not these Southern outrages make your blood boil? At these I smile, or am interested, or reduce the boiling to a... Show more

Read the passage:

Between me and the other world there is ever an unasked question: unasked by some through feelings of delicacy; by others through the diffi- culty of rightly framing it. All, nevertheless, flutter round it. They approach me in a half- hesitant sort of way, eye me curiously or com- passionately, and then, instead of saying directly, How does it feel to be a problem? they say, I know an excellent colored man in my town; or, I fought at Mechanicsville; or, Do not these Southern outrages make your blood boil? At these I smile, or am interested, or reduce the boiling to a simmer, as the occasion may require. To the real question, How does it feel to be a problem? I answer seldom a word.
And yet, being a problem is a strange experience,—peculiar even for one who has never been anything else, save perhaps in baby- hood and in Europe. It is in the early days of rollicking boyhood that the revelation first bursts upon one, all in a day, as it were. I remember well when the shadow swept across me. I was a little thing, away up in the hills of New England, where the dark Housatonic winds between Hoosac and Taghkanic to the se","In a wee wooden schoolhouse, something put it into the boys' and girls' heads to buy gor- geous visiting-cards—ten cents a package—and exchange. The exchange was merry, till one girl, a tall newcomer, refused my card,—refused it peremptorily, with a glance. Then it dawned upon me with a certain suddenness that I was different from the others; or like, mayhap, in heart and life and longing, but shut out from their world by a vast veil. I had thereafter no desire to tear down that veil, to creep through; I held all beyond it in common contempt, and lived above it in a region of blue sky and great wandering shadows. That sky was bluest when I could beat my mates at examination-time, or beat them at a foot-race, or even beat their stringy heads. Alas, with the years all this fine contempt began to fade; for the words I longed for, and all their dazzling opportunities, were theirs, not mine. But they should not keep these prizes, I said; some, all, I would wrest from them.
Just how I would do it I could never decide: by reading law, by healing the sick, by telling the wonderful tales that swam in my head,—some way. With other black boys the strife was not so fiercely sunny: their youth shrunk into tasteless sycophancy, or into silent hatred of the pale world about them and mock- ing distrust of everything white; or wasted itself in a bitter cry, Why did God make me an out- cast and a stranger in mine own house? The shades of the prison-house closed round about us all: walls strait and stubborn to the whitest, but relentlessly narrow, tall, and unscalable to sons of night who must plod darkly on in resig- nation, or beat unavailing palms against the stone, or steadily, half hopelessly, watch the streak of blue above.

— excerpt from The Souls of Black Folk by W. E. B. Du Bois    

Show less