A terrible possession while it lasts.

Terrible, surely; and yet indeed ’tis true.

E’en in my utmost impotence I find

A fount of strange persistence in my soul;

Also, and that perchance is stronger still,

A wakeful, changeless touchstone in my brain,

Receiving, noting, testing all the while

These passing, curious, new phenomena—

Painful, and yet not painful unto it.

Though tortured in the crucible I lie,