“Isolt’s themes are love, fertility and sexuality. Her symbols are white items. Known throughout Western Europe as the lover of Tristan, Isolt of the White Hands is a Celtic Goddess who encourages devoted love and improves sexual expression within a relationship. Close studies of stories indicate three women who held this role, alluding to an ancient triple Goddess whose role changed with time and bardic adaptations.
In France, this is a time for women to come to a cave in Provence thought to be an ancient dwelling of the Goddess (later attributed to Mary Magdalene). They travel here from miles around seeking love and/or fertility, the cave acting like a creative womb in which the Goddess’s power grows. If you’re fortunate to live in an area with caves, take a moment to visit one today. Sit inside and let Isolt hold you in Her loving arms or fill you with an appetite for your partner. Otherwise, create a makeshift cave out of blankets draped over a table. Meditate inside, visualizing Isolt’s white light filling your heart chakra until it all but bursts with devotion and fervor.
If you’re seeking a mate, use this time to express your desire to Isolt, visualizing your ideal mate in as much detail as possible. Then get out and start socializing, so the Goddess can open the path to love.”
(Patricia Telesco, “365 Goddess: a daily guide to the magic and inspiration of the goddess”.)
“Iseult, alternatively Isolde, Iseo, Yseult, Isode, Isoude, Esyllt, Isotta, is the name of several characters in the Arthurian story of Tristan and Iseult. The most prominent is Iseult of Ireland, wife of Mark of Cornwall and adulterous lover of Sir Tristan. Her mother, the Queen of Ireland, is also named Iseult. The third is Iseult of the White Hands, the daughter of Hoel of Brittany, sister of Sir Kahedin, and eventual wife of Tristan.” 
Patricia Monaghan tells us that “in the cycle of British myths that came into literature as the “Matter of Britain” – the stories of the fabled realm of Camelot – this heroine is the center of a tale of fated love. A single strand of [Iseult's] gorgeously golden hair attracted the attention of Mark of Cornwall, who sent his knight Tristan to find and fetch her. On the boat back to Mark, the couple mistakenly drank a potion intended to make the newlywed couple fall hopelessly in love – and thus Iseult found herself irrevocably in love with Tristan. They attempted to fulfill their assigned roles, Iseult as Mark’s wife and Tristan as his vassal, but they were doomed to love each other, and their love eventually led to Tristan’s banishment and Iseult’s death. Afterwards, Tristan married another woman, Iseult of the White Hands. As Arthurian legend frequently hides ancient Celtic and even pre-Celtic mythology, we can here detect an ancient Goddess of sovereignty, who must mate with the king to solidify his claim to the land. In a struggle between contenders to the Goddess’ hand (or bed), the younger and more vigorous finally wins – although the late legend disguises this fact by offering a second Iseult to the victorious Tristan” (p. 164).
Monaghan, Patricia. The New Book of Goddesses and Heroines, “Iseult”.
Green, Thomas. Arthuriana.co.uk, “The Other Early Arthurian Cycle: the Tale of Tristan and Isolt“.
Kingarthursknights.com, “Other Characters of Arthurian Legend ~ Iseult“.
Kirsten. Indigo Reading Blog, “Todays Reading – Isolt“.
Nicole, Shantel. Angelic Connections with Shantel Nicole, “Isolt“.
University of Rochester, “TRISTAN and ISOLT“.
Wikipedia, “Tristan and Iseult“.