Its strength and vigour lie in its humility: 'Nothing in the world is as gentle and flexible as water. Yet when it attacks something hard or resisting, then nothing can resist it and nothing will alter its course,' teaches Lao Tzu (founder of Taoism in the 5th century BC) in the Tao Te Ching. A symbol of purity and regeneration, water has no form, it is capable of mutating, adapting to circumstances, circumventing the obstacles it encounters, from its source and all the way to the sea, in a process of continuous transformation. It is so light that it is impossible to grasp it with one hand: if you hit it, you cannot hurt it; cut it and it will not be hurt, separate it but it will not divide.
