Eos is the dawn, daughter of the Titan Hyperion and Theia, who rises each morning from the edge of Ocean and draws the light up for her brother Helios. Her Homeric epithet is rhododaktylos, rosy-fingered, a formula repeated with the regularity of liturgy. She loved Tithonus and asked Zeus for immortality for him but forgot eternal youth, so he withered until he became a cicada; by the wind Astraeus she is mother of the four winds and of the morning star, and her mourning for her son Memnon is one of the oldest dawn-sorrow stories.
Modern Practice
Eos is called on at the start of a working day, at the beginning of a venture, and by anyone who has to rise before they feel ready. The practice is a dawn offering and a short walk east; her caution is the Tithonus one, that it matters what exactly you ask to keep.