Yes! I watched that video as well around the same time and read the book. (Admittedly I was in a "positive psychology" kick at the time and was consuming anything about happiness.)
I like your summary. An even more general way to look at is that we have less control over our minds (and moods) than we expect, so don't stress about it. :)
The author points out how the current field is fragmented with no underlying theory, and he provides one by reconciling the demands of psychologists and philosophers who have thought and written about this topic.
I like your summary. An even more general way to look at is that we have less control over our minds (and moods) than we expect, so don't stress about it. :)