Just to say this plainly: human beings can never be made happy by the material world. We are spiritual beings and can be emotionally healthy only when we are in touch with a higher world.

Daniel Goleman Happiness: A Guide to Developing Life's Most Important Skill

The School of Life A Simpler Life: A guide to greater serenity, ease and clarity

Charlotte J. Beck Everyday Zen: Love and Work (Plus)

A. H. Almaas Spacecruiser Inquiry: True Guidance for the Inner Journey (Diamond Body Series Book 1)

J. Fulton Sheen Way to Happiness

Brianna Wiest 101 Essays That Will Change The Way You Think