Water is the most common, and also the most important substance on Earth. We are hypnotically attracted to its simplicity, purity and transparency, as well as its astonishing physical behaviour, strucural vibrations and ordered flow, not to mention its amazing therapeutic virtues. Despite its prevalence, however, this astonishing molecule still harbours many mysteries. Through the ages, not only scientists but also philosophers and mystics have sought to interpret the fact that our lives are completely dependent on water. They have drawn paralells with spiritual growth: water is always ready to change, to adapt itself, to create and transform; it could be seen as nature’s guide to improving and renewing ourselves in wisdom and serenity.