What is it to be 'hale and hearty'? Can we be hale and hearty throughout our lives? This book examines this state of mind and gives some hints about how to achieve it and keep it. It is about being 'hale and hearty' in the sense of being at one with ourselves and world. We aim to achieve a wholeness within us that emanates good health and heartiness. By looking at ourselves as a whole and at humanity as a whole we can find the best way forward. The aim is to achieve integrity and inner strength by constantly interacting with all the knowledge and experience that our lives have to offer. The eight exercises outlined in this book can be helpful in that regard. These mental exercises offer different viewpoints that broaden the mind and focus it on the important things about life and living. The resultant holistic view is an antidote to the overspecialisation of science on the one hand and the unworldliness of religion on the other hand.