Full moon occurs when the Moon is on the opposite side of the Earth from the Sun. Sun and Moon, dancing around Earth, are today facing each other and uniting into a marriage of the masculine and feminine energies, the Goddess and God embracing each other. Hatha (sun/moon), yang-yin - balancing the two energies that affect all life on Earth is what we should aim at in our own lives. Sun and Moon inside you, playing around, both receiving and giving, finally two becoming One. One Love.
Pictures via weheartit (it's so easy and I'm lazy!)