You know, without my telling you, how sometimes a word or...

You know, without my telling you, how sometimes a word or name eludes you, and you seek it through running ghosts of shadow -- leaping at it, lying in wait for it to spring upon it, spreading faint snares for it of sense or sound: until, of a sudden, as if in a phantom forest, you hear it, see it flash among the branches, and scarcely knowing how, suddenly have it.