Let me share with you a note from a booklet entitled Warrior of Light-A Manual written by Paulo Coelho:
The Warrior of Light sometimes behaves like water,flowing through the obstacle he encounters.Occasionally resistance may means destruction,and so he adapts to the circumtances.He accepts without complaints,that the stones in his path hinders his way through the mountains.
Therein lies the strength of water.It cannot be touched by a hammer or ripped to a shred by a knife.The strongest sword in the world cannot scar its surface.
The river adapts itself to whatever route proves possible, but the river never forget its one objective,the sea.So fragile at its source,it gradually gathers strength of other rivers it encounters.
And after a certain point,its power is absolute.