I finished the book today. I must say that I had a hard time relating to some of what the author was trying to do. There were some parts that rang true, i.e. enjoy what is going on now. Since I am in my 70's, that is very important. I love where I live, the house I live in and my friends, family and of course those grandchildren.
I don't give much thought to "am I happy" because I know that I am.