https://www.thisamericanlife.org/radio-archives/episode/585/transcript
https://www.mdbg.net/chinese/dictionary?page=worddict&wdrst=1&wdqb=chongxi#
It's been three years now since Nainai was first diagnosed. Little Nainai is certain her big sister is still alive because of her decision to lie to her, because we gave Nainai joy instead of worry. My mom told me about an old Chinese belief called chongxi. Chong means to rinse out, and xi is joy. So chongxi is the belief that you can wash away a misfortune with joy.