Gaia, in Greek mythology, is the personification of the Earth and one of the primordial deities. She is often depicted as a nurturing figure, representing fertility and the life-giving aspects of nature. As the mother of Uranus (the sky), she played a crucial role in the creation of the universe and the birth of many other gods and creatures. Gaia is also associated with the concept of Gaia theory, which suggests that the Earth functions as a self-regulating system. This idea emphasizes the interconnectedness of all living organisms and their environment, highlighting the importance of ecological balance and sustainability.