The suggestive mythical and legendary figure holds a central position in the aesthetic of European symbolism at the end of 19th and the beginning of 20th century. This doctoral thesis proposes to study its apparition and function in the works of three distinguished representatives: Stéphane Mallarmé (1842–1898, France), William Butler Yeats (1865–1939, Ireland) and Stefan George (1868–1933, Germany). A look on contemporary society (arts, scientific discoveries) will allow discovering the place due to myth and legend. Beyond their differences, affinities and personal contacts bring these poets closer together. Two generations of symbolists, speaking different languages, join in one and the same view on poetical creation. Poetic works (poetry, prose and theatre), theoretical texts, letters and conversations reveal joint approach to image and myth: the mythical and legendary figure takes shape among dreams and vision, reminiscence, musical evocation and literary symbol. A personal theory emerges from speech on myth. Poetry and drama draw from the heterogeneous sources of various traditions, enriching with philosophy, religion, psychology, occultism and private experience. Transposition of art conveys the mythical text of the painted subject or is contaminated by it. Hence a compound link from text to painting (or sculpture). Explicit in the poet’s early work, mythical and legendary figure will go through multiple metamorphosis: synthetic, it melts the different versions of a myth with traditions from far away, it superimposes mythical figures and facts on others taken from history and contemporary reality. Implicit, it will be present as a trace, a common noun, a pronoun, a qualifying adjective, or a gesture. Great diversity of forms provides him power of radiation. Flexibility of form and content matches with diversity of functions: the mythical figure lends itself to every stylistic figure and grammatical function. This way it creates cohesion within the work and contributes intimately to the construction of sense. Contamination affects all the mythopoetic work. Around these figures a constellation of images forms and produces a new anthropocentric myth, summarizing and going beyond traditions. Hoard of images for future creations in the beginning (Yeats), the poet’s work actually comes up to a bid far more ambitious: give an answer to the quest for sense of history and life of modern man who doesn’t believe in God any more, and draw the outline of a new society. Mythical and legendary figure represent the essential element of poetic creation.