The date of Easter is different every year. Not only does the date change because Easter is always on a Sunday, but also because it's always the date of the first full moon after the spring equinox. That means it can be anytime between March 22 and April 25. Some people have argued that we should fix the date of Easter each year -- to the first or second Sunday in April -- so that school term dates, for example, could be consistent and predictable. This book explores the significance of keeping Easter as a movable festival. Based on his research into the importance of rhythm for human health and wellbeing, physician Walter Buhler demonstrates a profound connection between the complex rhythms of the sun and the moon and the historical events of Christ's death and resurrection. He argues that, in the same way the rhythm of day and night is reflected in waking and sleeping, celebrating Easter on a different date each year reflects the deep connection and harmony between human beings and the rhythms of the cosmos.

How can we truly understand the vital questions of health and illness, which are so much part of our everyday lives? Good nutrition, exercise and relaxation are only some of the answers, says Buhler. What we really need is a comprehensive insight into our true human nature, including the various forces working within and through us. In this classic, concise study we are given a vivid picture of the human being's threefold nature, consisting of body, soul and spirit. The author analyses the key aspects of our physical being and inner selves: the heart (organ of the 'heart quality'), the metabolism (relating to the will), and the sensory-nervous system (as 'mirror of the soul'). He provides a deeper understanding - and hence a solid basis for work - for teachers, medical professionals and therapists, and anyone seeking encouragement to lead a healthy lifestyle.