To achieve enlightenment is a worthy goal, the hardest of all to achieve. And it is only when we allow our minds to be fluid like water running to its source that we have any hope of coming close to achieving enlightenment. When water in a river is blocked it becomes stagnant, it is not longer clear and pure but filled with scum attached to it and growing in it. Like our minds, when not fluid, stop us from having clear vision and we become weighed down with grime and dirt and can no longer see properly the world around us.