I've always known this to be called "gratitude". It's a simple enough procedure, which has proven scientific benefits.

https://greatergood.berkeley.edu/topic/gratitude

https://www.linkedin.com/in/andrew-huberman/

In addition to the research that Dr. Huberman does at Stanford, he frequently is a guest on numerous podcasts

https://www.youtube.com/results?search_query=andrew+huberman+gratitude+podcast