The polarity explains that everything is two poles or opposite Has aspects that Opposites in reality only the two extremes of the same things are with many different degrees between them both. To clarify: heat and cold, though "Opposites" are actually the same, the differences exist only in the degrees of one and the same thing. look on your thermometer and seek to discover the point at where "heat" ends and "cold" begins! There is no such thing as an absolute heat or absolute cold - the two expressions heat and cold only denote different degrees of the same thing, and this same thing that appears as heat and cold is only a shape, a variation, and a degree of vibration. So heat and cold are simply the two poles of what we are Call heat - and the phenomena that depend on it are expressions of the principle of polarity.