Mr. Lorry frames the question by pretending the affliction happened to somebody else and now he seeks Dr. Manette's advice.
"I believe," returned Doctor Manette, "that there had been a strong and extraordinary revival of the train of thought and remembrance that was the first cause of the malady. Some intense associations of a most distressing nature were vividly recalled, I think. It is probable that there had long been a dread lurking in his mind, that those associations would be recalled—say, under certain circumstances—say, on a particular occasion. He tried to prepare himself in vain; perhaps the effort to prepare himself made him less able to bear it."