A review by patlo
Ikigai: The Japanese Secret to a Long and Happy Life by Francesc Miralles, Héctor García

challenging informative inspiring reflective relaxing fast-paced

3.0

 or the epilogue are all you need to read, and in between use big grains of salt (e.g. cave dwellers were relaxed most of the time; modern humans work most of the time and are alert to any kinds of threats). Maybe not quite. However, good ideas about flow,  ritual, movement, mindfulness meditaton.