In Asian philosophy, the concept of yin yang (in the West often referred to as yin and yang) is used to describe how polar opposites or seemingly contrary forces are interconnected and interdependent in the natural world, and how they give rise to each other in turn. Like night and day, ebb and flow or in the case of this Japanese proverb; vision and action. They need each other, for else they become illusionary forces – either a daydream or a nightmare. Did you notice how in the West ‘yin yang’ is referred to as ‘yin and yang’? Apparently in Asian philosophy there is no need for and in yin (and) yang, meaning: in Asia the yin yang concept is considered as one, while in the West it is perceived as two separate forces, that potentially is one, depending on the presence of the word and.