Read it through once

We impute it, therefore, solely to the disease in his own eye and heart, that the minister, looking upward to the zenith, beheld there the appearance of an immense letter,—the letter A,—marked out in lines of dull red light. Not but the meteor may have shown itself at that point, burning duskily through a veil of cloud; but with no such shape as his guilty imagination gave it; or, at least, with so little definiteness, that another’s guilt might have seen another symbol in it.