For reasons beyond our comprehension, we perceive this simple energy manifesting itself by degrees in greater complexity. As it does so, it descends through many levels of expression, first formless and then formed. It is the higher state of energy, being cause, that is the purpose and meaning of every lower state or effect. If we do not relate to or search for the cause, if we do not attempt to experience beyond phenomena, we cannot know the higher purpose or meaning of anything, least of all ourselves. It is also this level of cause which is the quality of a thing or person.
Quantity is a measure of the outer characteristics, such as size, physical features, weight, etc.
Quality is an indication of the energy which produces the form. It is through the experience of quality that we are able to direct energy, including our own, and actually become it to the point where we are able to function as conscious causes rather than unconscious effects of life. This ability enhances our power, enables us to love unconditionally, and opens the door to true understanding. What makes us who we are is our individuality. The personality is but the outer or exoteric expression of individuality.