In all this process there is a second element, which in reality is the primordial one: the process of the Earth itself and its capacities as a generator of life, marking the very pulse of the battle between light and darkness. Our ancestors knew that there was a stage in which the Earth slept: when the leaves change from one radiant colour to another more faded, until they finally fall. When the light diminishes and weakens, with darkness appearing to overcome the light -between autumn and winter-. In the period that goes from winter to spring, the light, without fully losing against the darkness, begins to recover its energy, it awakens: when new leaves begin to emerge on the trees, and the light rises, equalling the night -spring-. Even so, the Earth will not recover all its vitality and energy until the light of day begins to impose itself over the night, beginning its path of fullness -spring and summer-. Finally, and in the summer period -summer or autumn-, the Earth gives its fruits, this being a period destined exclusively for enjoyment, until the Earth falls asleep again. The Earth was then known as the Divine Matrix, the Mother of all living beings. Personified in goddesses -luminaries- of nature: the waters, the stones, the forests, the lands, the seas, the rivers, the Moon, etc.