In other words, Yin is more immature and youthful, lacking any integrity in and of itself (ignoring the fact that the energies intersect), lacking discipline. It's totally receptive and sensual, but when in contact with Yang (Solar Vitality), it reflects it like the moon does the sun, and it can express itself in all kinds of crazy animalistic, or more refined ways depending on its desires and interpretation of the Yang at that instance.

[-]