How did Buddha teach Kisa Gotami the truth of life?

Kisa Gotami was devastated by the death of her only son and wandered door to door, seeking help. Someone directed her to Sakyamuni, the Buddha, who asked her to bring a handful of mustard seeds. This raised a hope in Gotami’s heart that her son could be revived. But the condition imposed by Sakyamuni was that the seeds should be from a house where people had not lost a loved one to death. Kisa Gotami’s futile search made her realize the bitter truth that sorrows are a part and parcel of life and one can attain peace only by acceptance.