“Eguzki’s themes are femininity, birth and renewal. Her symbols are the dawn and daylight. In Basque tradition, this daughter of the earth is the solar disk and the eye of God; being beautiful, warm, and welcoming. Eguski continues to embrace Her mother in golden arms each day, gathering us in the glow.
The night before Christmas was Mōdraniht (“Night of the Mothers” or “Mothers’-night”), when the Goddess prepares once more to give birth to Eguski and growing daylight. It is traditionally a time to enjoy the Goddess’ energy for personal renewal and to show appreciation to mothers everywhere with their life-giving power. Take a moment out of your day to call your mom and say thanks – thanks for giving you life, for nurturing you, for passing on family traditions, for the important lessons she taught. Also take a moment to thank Eguski for Her blessings in some way that suits your vision and path. Pray, chant, sing, meditate, light a candle. Ask Her for another year filled with Goddess magic and miracles!
To encourage Eguski’s renewal and warmth every day, rise early this morning and wait for sunrise. As the first beams of light caress the horizon, open your arms and hug the Goddess. Feel the energy and power in those rays to transform and overcome anything you may face. Gather the Goddess into your heart for now and always!”
(Patricia Telesco, “365 Goddess: a daily guide to the magic and inspiration of the goddess”.)
“In Basque mythology, Eki or Eguzki is seen as daughter of [Lur] Mother Earth to whom She returns daily. She was regarded as the protector of humanity and the enemy of all evil spirits. The ancient Iberians called Her ‘grandmother’; and held rites in Her honour at sunset. They believed that when the sun set, Ekhi travelled into Itxasgorrieta (‘The Reddish Seas’) beneath the earth into the womb of Lurbira, Her mother.” 
She was the sister of Ilazki, Goddess of the moon.
Also seen as Eguski, Eguzku, Ekhi, Eki, Iduzki, Iguzki, and Iuski. 
Sabrina. Goddessaday.com, “Eguzki“.
The Apricity Forum: A European Cultural Community, “Basque Gods and Creatures“.
Arcadia93.org, “Basque Paganism“.
Gimbutas, Marija and Miriam Robbins Dexter. The Living Goddesses, “The Basque Religion” (p. 172 – 175).
Lauraantolinez. Litteramedia.wordpress.com, “Basque Mythology“.
Wikipédia, “Eguzki” (translated from French to English).
Wikipedia, “Basque Mythology“.