If you care about how you are gifted and how to utilize those gifts to reach your full potential so as to make meaningful contribution to the society, then, this book is for you.
It is full of practical exercises and tips in finding what you are - and not - good at, what you love -and don't like- to do, and discovering new opportunities to hone your talents and create your unique career paths in response to the needs of the environments.
The assumption is: when the talent and passion overlap, then you are likely to have a successful, happy life with a sense of completeness.
I agree with Robinson that passion is more important than talents because passion in many cases serves as intrinsic motivation in our pursuit - gives us a sense of purpose. We will gain sustained kinds of happiness, feeling spiritually complete, when we are doing things we feel passionately about. This is also due to the meanings that we create along the experiential process.
I also appreciate the discussion on the courage to explore new things and the effort to practice. Along the way, to deal with the uncertainty, you need to have what Carol Wreck called "growth mindset."
As the book quoted from Mark Twain, "Twenty years from now you will be more disappointed by the things that you didn't do than by the ones you did do. So throw off the bowlines. Sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream. Discover."
To add more emphasis on agency, I would just add to E.D.D. "Create."