The Unlikely Pilgrimage of Harold Fry by Rachel Joyce

Another book that will make you question the way we live life,  well Harold, a retired guy who felt unappreciated and disappointed everyone decides to take an extraordinary journey and while this walk he unfolds the different layers of his past and one by one untangle his life. 

I highly recommend it to all the people who live under the illusion that life is just about developing career & earning comforts