What did ching ming do to have crickets?

Ching Ming, also known as Tomb-Sweeping Day, traditionally involves honoring ancestors by cleaning their graves and making offerings. In some cultures, people believed that keeping crickets as pets symbolized good luck and prosperity. The association may stem from the idea that crickets' chirping brings a harmonious atmosphere, which complements the remembrance and respect shown during the Ching Ming festivities. Thus, the practice of keeping crickets could be seen as a way to invite positive energy during this solemn occasion.