 In Picasso' paintings of Marie-Thérèse Walter, everywhere there is green, the colour of fertility and nature's renewal.In his series of sleeping nudes, Picasso may have been influenced by the much reproduced Hal Saflieni "Reclining Woman" and the Venuses of Lespugue and Willendorf, which with their heavy, ripe, bulging forms can be viewed as ancestresses of Picasso's images of female fecundity.In "The Bacchae", an ancient Greek tragedy written by Athenian playwright Euripides, Dionysus is mentioned as a male fertility god that represented a special kind of vitality that is sometimes referred to as the Life Force.