A reading of the immortal medieval legend in the light of the principles of the perennial and universal wisdom.

A mid-twelfth century makes its entry into the European literature the legend of Tristan and Isolde. Resulting from the oral tradition and Celtic origin, the history of this fatal passion will meet an unprecedented success in the Western imagination, success will remain firm until the sixteenth century to revive with special force from Romanticism, largely because Wagner's opera. Neither the Middle Ages nor now, this work, enigmatic in many places, with many problematic aspects not in vain Dante, for example, placed Tristan in hell has ceased to arouse different interpretations and readings. Pierre Ponsoye, a specialist in medieval themes, offers here his particular vision, the fundamental difficulties facing the issue arises, to reveal the meaning of the essential core of the legend.