When Kisa Gotami requested the Buddha to cure her son, he did not give her a lecture or tell her that what she was doing was wrong.
He instead asked her to collect mustard seeds from a house that had not experienced death. He presented her with a task that required her to reflect and learn about the universal nature of suffering.
Buddha's method of teaching can be understood as one where he engages his students in a journey of self-discovery, rather than directly providing them with an answer to a question.