As the Time Draws Nigh

As the time draws nigh glooming a cloud,
A dread beyond of I know not what darkens me.
I shall go forth,
I shall traverse the States awhile, but I cannot tell whither or how long,
Perhaps soon some day or night while I am singing my voice will
suddenly cease.
O book, O chants! must all then amount to but this?
Must we barely arrive at this beginning of us? --and yet it is
enough, O soul;
O soul, we have positively appear’d--that is enough.