Original artwork, not a still
What this power is I cannot say; all I know is that it exists and it becomes available only when a man is in that state of mind in which he knows exactly what he wants and is fully determined not to quit until he finds it.
Behind the line
What it means
Our interpretation.
The speaker admits uncertainty about the nature of a power while expressing confidence about the conditions under which it becomes available. Clear desire and persistence are made those conditions. The passage therefore distinguishes knowing what something is from believing that a particular resolve can call it into action.
Context reviewed
