The type of beliefs that Mount Ida and Rhea have in common is Greek mythology.
In Greek mythology, two sacred mountains are called Mount Ida, the "Mountain of the Goddess": Mount Ida in Crete; and Mount Ida in the ancient Troad region of western Anatolia (in modern-day Turkey) which was also known as the "Phrygian Ida" in classical antiquity and is the mountain that is mentioned in the Iliad of Homer and the Aeneid of Virgil. 
Rhea ( ; Greek:  , ] ) is a character in Greek mythology, the Titaness daughter of the earth goddess Gaia and the sky god Uranus, and sister and wife to Cronus. 
