This paper explores questions and ideas that have been central to my work as a doctor, though constantly evolving, for 37 years. They concern medicine and healing, and the understanding of human nature in its wholeness; a wholeness that is truly holistic, in that it concerns a whole greater than the sum of its parts. They reflect the contribution that the study and practice of homeopathy have made to their evolution; and not least the influence of people I have met in the process, practitioners and teachers, but also the patients who have trusted me with the intimate details of their lives. I will describe briefly my perspective, explain what I mean by healing and wholeness, and suggest how medicine needs to change if it is to be a true servant of healing. I will show how homeopathy has informed my thinking, and how it exemplifies some of the principles that I have come to be guided by.